I think I fixed everything it is possible to stuff a light source into.

Conflicts:
	code/game/dna/dna_modifier.dm
	code/game/machinery/Sleeper.dm
	code/game/objects/structures/transit_tubes.dm
	code/modules/reagents/Chemistry-Machinery.dm
	code/modules/recycling/disposal.dm

code/__HELPERS/loc.dm

@@ -0,0 +1,7 @@
+atom/movable/proc/setloc(newloc)
+	if(light)
+		var/oldloc = loc
+		loc = newloc
+		if(isturf(newloc) != isturf(oldloc)) light.Reset()
+	else
+		loc = newloc

code/game/atoms_movable.dm

@@ -43,7 +43,7 @@
 	if(destination)
 		if(loc)
 			loc.Exited(src)
-		loc = destination
+		setloc(destination)
 		loc.Entered(src)
 		for(var/atom/movable/AM in loc)
 			AM.Crossed(src)

code/game/dna/dna_modifier.dm

@@ -86,14 +86,11 @@
 /obj/machinery/dna_scannernew/proc/eject_occupant()
 	src.go_out()
 	for(var/obj/O in src)
-		if(!istype(O,/obj/item/weapon/circuitboard/clonescanner) && \
-		   !istype(O,/obj/item/weapon/stock_parts) && \
-		   !istype(O,/obj/item/stack/cable_coil) && \
-		   O != beaker)
-			O.loc = get_turf(src)//Ejects items that manage to get in there (exluding the components and beaker)
+		if((!istype(O,/obj/item/weapon/reagent_containers)) && (!istype(O,/obj/item/weapon/circuitboard/clonescanner)) && (!istype(O,/obj/item/weapon/stock_parts)) && (!istype(O,/obj/item/stack/cable_coil)))
+			O.setloc(get_turf(src))//Ejects items that manage to get in there (exluding the components)
 	if(!occupant)
 		for(var/mob/M in src)//Failsafe so you can get mobs out
-			M.loc = get_turf(src)
+			M.setloc(get_turf(src))
 
 /obj/machinery/dna_scannernew/verb/move_inside()
 	set src in oview(1)
@@ -116,7 +113,7 @@
 	usr.stop_pulling()
 	usr.client.perspective = EYE_PERSPECTIVE
 	usr.client.eye = src
-	usr.loc = src
+	usr.setloc(src)
 	src.occupant = usr
 	src.icon_state = "scanner_1"
 	src.add_fingerprint(usr)
@@ -194,7 +191,7 @@
 
 		beaker = item
 		user.drop_item()
-		item.loc = src
+		item.setloc(src)
 		user.visible_message("[user] adds \a [item] to \the [src]!", "You add \a [item] to \the [src]!")
 		return
 	else if (!istype(item, /obj/item/weapon/grab))
@@ -217,7 +214,7 @@
 	if(M.client)
 		M.client.perspective = EYE_PERSPECTIVE
 		M.client.eye = src
-	M.loc = src
+	M.setloc(src)
 	src.occupant = M
 	src.icon_state = "scanner_1"
 
@@ -240,7 +237,7 @@
 	if (src.occupant.client)
 		src.occupant.client.eye = src.occupant.client.mob
 		src.occupant.client.perspective = MOB_PERSPECTIVE
-	src.occupant.loc = src.loc
+	src.occupant.setloc(src.loc)
 	src.occupant = null
 	src.icon_state = "scanner_0"
 	return
@@ -249,7 +246,7 @@
 	switch(severity)
 		if(1.0)
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.loc
+				A.setloc(src.loc)
 				ex_act(severity)
 				//Foreach goto(35)
 			//SN src = null
@@ -258,7 +255,7 @@
 		if(2.0)
 			if (prob(50))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 					//Foreach goto(108)
 				//SN src = null
@@ -267,7 +264,7 @@
 		if(3.0)
 			if (prob(25))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 					//Foreach goto(181)
 				//SN src = null
@@ -280,7 +277,7 @@
 /obj/machinery/dna_scannernew/blob_act()
 	if(prob(75))
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.loc
+			A.setloc(src.loc)
 		del(src)
 
 /obj/machinery/computer/scan_consolenew

code/game/machinery/Sleeper.dm

@@ -187,7 +187,7 @@
 	blob_act()
 		if(prob(75))
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.loc
+				A.setloc(src.loc)
 				A.blob_act()
 			del(src)
 		return
@@ -198,7 +198,7 @@
 			if(!beaker)
 				beaker = G
 				user.drop_item()
-				G.loc = src
+				G.setloc(src)
 				user.visible_message("[user] adds \a [G] to \the [src]!", "You add \a [G] to \the [src]!")
 				src.updateUsrDialog()
 				return
@@ -228,7 +228,7 @@
 				if(M.client)
 					M.client.perspective = EYE_PERSPECTIVE
 					M.client.eye = src
-				M.loc = src
+				M.setloc(src)
 				src.occupant = M
 				src.icon_state = "sleeper_1"
 				if(orient == "RIGHT")
@@ -248,21 +248,21 @@
 		switch(severity)
 			if(1.0)
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 				qdel(src)
 				return
 			if(2.0)
 				if(prob(50))
 					for(var/atom/movable/A as mob|obj in src)
-						A.loc = src.loc
+						A.setloc(src.loc)
 						ex_act(severity)
 					qdel(src)
 					return
 			if(3.0)
 				if(prob(25))
 					for(var/atom/movable/A as mob|obj in src)
-						A.loc = src.loc
+						A.setloc(src.loc)
 						ex_act(severity)
 					qdel(src)
 					return
@@ -309,7 +309,7 @@
 		if(src.occupant.client)
 			src.occupant.client.eye = src.occupant.client.mob
 			src.occupant.client.perspective = MOB_PERSPECTIVE
-		src.occupant.loc = src.loc
+		src.occupant.setloc(src.loc)
 		src.occupant = null
 		if(orient == "RIGHT")
 			icon_state = "sleeper_0-r"
@@ -411,8 +411,29 @@
 		if(orient == "RIGHT")
 			icon_state = "sleeper_1-r"
 
-		for(var/obj/O in src)
-			del(O)
-		src.add_fingerprint(usr)
+		for(var/mob/living/carbon/slime/M in range(1,usr))
+			if(M.Victim == usr)
+				usr << "You're too busy getting your life sucked out of you."
+				return
+		visible_message("[usr] starts climbing into the sleeper.", 3)
+		if(do_after(usr, 20))
+			if(src.occupant)
+				usr << "\blue <B>The sleeper is already occupied!</B>"
+				return
+			usr.stop_pulling()
+			usr.client.perspective = EYE_PERSPECTIVE
+			usr.client.eye = src
+			usr.setloc(src)
+			src.occupant = usr
+			src.icon_state = "sleeper_1"
+			if(orient == "RIGHT")
+				icon_state = "sleeper_1-r"
+
+			usr << "\blue <b>You feel cool air surround you. You go numb as your senses turn inward.</b>"
+
+			for(var/obj/O in src)
+				del(O)
+			src.add_fingerprint(usr)
+			return
 		return
-	return
+	return

code/game/machinery/adv_med.dm

@@ -46,7 +46,7 @@
 	usr.pulling = null
 	usr.client.perspective = EYE_PERSPECTIVE
 	usr.client.eye = src
-	usr.loc = src
+	usr.setloc(src)
 	src.occupant = usr
 	src.icon_state = "body_scanner_1"
 	for(var/obj/O in src)
@@ -60,12 +60,12 @@
 	if ((!( src.occupant ) || src.locked))
 		return
 	for(var/obj/O in src)
-		O.loc = src.loc
+		O.setloc(src.loc)
 		//Foreach goto(30)
 	if (src.occupant.client)
 		src.occupant.client.eye = src.occupant.client.mob
 		src.occupant.client.perspective = MOB_PERSPECTIVE
-	src.occupant.loc = src.loc
+	src.occupant.setloc(src.loc)
 	src.occupant = null
 	src.icon_state = "body_scanner_0"
 	return
@@ -83,11 +83,11 @@
 	if (M.client)
 		M.client.perspective = EYE_PERSPECTIVE
 		M.client.eye = src
-	M.loc = src
+	M.setloc(src)
 	src.occupant = M
 	src.icon_state = "body_scanner_1"
 	for(var/obj/O in src)
-		O.loc = src.loc
+		O.setloc(src.loc)
 		//Foreach goto(154)
 	src.add_fingerprint(user)
 	//G = null
@@ -98,7 +98,7 @@
 	switch(severity)
 		if(1.0)
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.loc
+				A.setloc(src.loc)
 				ex_act(severity)
 				//Foreach goto(35)
 			//SN src = null
@@ -107,7 +107,7 @@
 		if(2.0)
 			if (prob(50))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 					//Foreach goto(108)
 				//SN src = null
@@ -116,7 +116,7 @@
 		if(3.0)
 			if (prob(25))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 					//Foreach goto(181)
 				//SN src = null
@@ -128,7 +128,7 @@
 /obj/machinery/bodyscanner/blob_act()
 	if(prob(50))
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.loc
+			A.setloc(src.loc)
 		del(src)
 
 /obj/machinery/body_scanconsole/ex_act(severity)

code/game/machinery/cryo.dm

@@ -251,7 +251,7 @@
 	if (occupant.client)
 		occupant.client.eye = occupant.client.mob
 		occupant.client.perspective = MOB_PERSPECTIVE
-	occupant.loc = get_step(loc, SOUTH)	//this doesn't account for walls or anything, but i don't forsee that being a problem.
+	occupant.setloc(get_step(loc, SOUTH))	//this doesn't account for walls or anything, but i don't forsee that being a problem.
 	if (occupant.bodytemperature < 261 && occupant.bodytemperature >= 70) //Patch by Aranclanos to stop people from taking burn damage after being ejected
 		occupant.bodytemperature = 261
 //	occupant.metabslow = 0
@@ -275,7 +275,7 @@
 		M.client.perspective = EYE_PERSPECTIVE
 		M.client.eye = src
 	M.stop_pulling()
-	M.loc = src
+	M.setloc(src)
 	if(M.health > -100 && (M.health < 0 || M.sleeping))
 		M << "\blue <b>You feel a cold liquid surround you. Your skin starts to freeze up.</b>"
 	occupant = M

code/game/machinery/cryopod.dm

@@ -80,7 +80,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 
 		visible_message("\blue The console beeps happily as it disgorges \the [I].", 3)
 
-		I.loc = get_turf(src)
+		I.setloc(get_turf(src))
 		frozen_items -= I
 
 	else if(href_list["allitems"])
@@ -92,7 +92,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 		visible_message("\blue The console beeps happily as it disgorges the desired objects.", 3)
 
 		for(var/obj/item/I in frozen_items)
-			I.loc = get_turf(src)
+			I.setloc(get_turf(src))
 			frozen_items -= I
 
 	else if(href_list["crew"])
@@ -186,11 +186,11 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 			//Drop all items into the pod.
 			for(var/obj/item/W in occupant)
 				occupant.drop_from_inventory(W)
-				W.loc = src
+				W.setloc(src)
 
 				if(W.contents.len) //Make sure we catch anything not handled by del() on the items.
 					for(var/obj/item/O in W.contents)
-						O.loc = src
+						O.setloc(src)
 
 			//Delete all items not on the preservation list.
 			var/list/items = src.contents
@@ -240,7 +240,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 					current_mode.possible_traitors.Remove(occupant)
 
 			// Delete them from datacore.
-			
+
 			if(PDA_Manifest.len)
 				PDA_Manifest.Cut()
 			for(var/datum/data/record/R in data_core.medical)
@@ -305,7 +305,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 			if(do_after(user, 20))
 				if(!M || !G || !G:affecting) return
 
-				M.loc = src
+				M.setloc(src)
 
 				if(M.client)
 					M.client.perspective = EYE_PERSPECTIVE
@@ -375,7 +375,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 		usr.stop_pulling()
 		usr.client.perspective = EYE_PERSPECTIVE
 		usr.client.eye = src
-		usr.loc = src
+		usr.setloc(src)
 		src.occupant = usr
 
 		if(orient_right)
@@ -401,7 +401,7 @@ obj/machinery/computer/cryopod/Topic(href, href_list)
 		occupant.client.eye = src.occupant.client.mob
 		occupant.client.perspective = MOB_PERSPECTIVE
 
-	occupant.loc = get_turf(src)
+	occupant.setloc(get_turf(src))
 	occupant = null
 
 	if(orient_right)

code/game/machinery/rechargestation.dm

@@ -75,7 +75,7 @@
 			if (src.occupant.client)
 				src.occupant.client.eye = src.occupant.client.mob
 				src.occupant.client.perspective = MOB_PERSPECTIVE
-			src.occupant.loc = src.loc
+			src.occupant.setloc(src.loc)
 			src.occupant = null
 			build_icon()
 			src.use_power = 1
@@ -179,7 +179,7 @@
 			if(usr && usr.client)
 				usr.client.perspective = EYE_PERSPECTIVE
 				usr.client.eye = src
-			usr.loc = src
+			usr.setloc(src)
 			src.occupant = usr
 			/*for(var/obj/O in src)
 				O.loc = src.loc*/

code/game/machinery/suit_storage_unit.dm

@@ -410,7 +410,7 @@
 
 		src.OCCUPANT.client.eye = src.OCCUPANT.client.mob
 		src.OCCUPANT.client.perspective = MOB_PERSPECTIVE
-	src.OCCUPANT.loc = src.loc
+	src.OCCUPANT.setloc(src.loc)
 	src.OCCUPANT = null
 	if(!src.isopen)
 		src.isopen = 1
@@ -453,7 +453,7 @@
 		usr.stop_pulling()
 		usr.client.perspective = EYE_PERSPECTIVE
 		usr.client.eye = src
-		usr.loc = src
+		usr.setloc(src)
 //		usr.metabslow = 1
 		src.OCCUPANT = usr
 		src.isopen = 0 //Close the thing after the guy gets inside
@@ -499,7 +499,7 @@
 			if (M.client)
 				M.client.perspective = EYE_PERSPECTIVE
 				M.client.eye = src
-			M.loc = src
+			M.setloc(src)
 			src.OCCUPANT = M
 			src.isopen = 0 //close ittt
 
@@ -520,7 +520,7 @@
 			return
 		user << "You load the [S.name] into the storage compartment."
 		user.drop_item()
-		S.loc = src
+		S.setloc(src)
 		src.SUIT = S
 		src.update_icon()
 		src.updateUsrDialog()
@@ -534,7 +534,7 @@
 			return
 		user << "You load the [H.name] into the storage compartment."
 		user.drop_item()
-		H.loc = src
+		H.setloc(src)
 		src.HELMET = H
 		src.update_icon()
 		src.updateUsrDialog()
@@ -548,7 +548,7 @@
 			return
 		user << "You load the [M.name] into the storage compartment."
 		user.drop_item()
-		M.loc = src
+		M.setloc(src)
 		src.MASK = M
 		src.update_icon()
 		src.updateUsrDialog()

code/game/mecha/mecha.dm

@@ -535,7 +535,7 @@
 				var/obj/mecha/working/ripley/R = src
 				if(R.cargo)
 					for(var/obj/O in R.cargo) //Dump contents of stored cargo
-						O.loc = T
+						O.setloc(T)
 						R.cargo -= O
 						T.Entered(O)
 

code/game/objects/items/weapons/implants/implantchair.dm

@@ -97,7 +97,7 @@
 		if (src.occupant.client)
 			src.occupant.client.eye = src.occupant.client.mob
 			src.occupant.client.perspective = MOB_PERSPECTIVE
-		src.occupant.loc = src.loc
+		src.occupant.setloc(src.loc)
 		if(injecting)
 			implant(src.occupant)
 			injecting = 0
@@ -117,7 +117,7 @@
 			M.client.perspective = EYE_PERSPECTIVE
 			M.client.eye = src
 		M.stop_pulling()
-		M.loc = src
+		M.setloc(src)
 		src.occupant = M
 		src.add_fingerprint(usr)
 		icon_state = "implantchair_on"

code/game/objects/items/weapons/storage/storage.dm

@@ -250,7 +250,7 @@
 	if(usr)
 		usr.u_equip(W)
 		usr.update_icons()	//update our overlays
-	W.loc = src
+	W.setloc(src)
 	W.on_enter_storage(src)
 	if(usr)
 		if (usr.client && usr.s_active != src)
@@ -293,9 +293,9 @@
 			W.layer = 20
 		else
 			W.layer = initial(W.layer)
-		W.loc = new_location
+		W.setloc(new_location)
 	else
-		W.loc = get_turf(src)
+		W.setloc(get_turf(src))
 
 	if(usr)
 		src.orient2hud(usr)
@@ -325,7 +325,7 @@
 				user << "\red The tray won't fit in [src]."
 				return 1
 			else
-				W.loc = user.loc
+				W.setloc(user.loc)
 				if ((user.client && user.s_active != src))
 					user.client.screen -= W
 				W.dropped(user)

code/game/objects/structures/crates_lockers/closets.dm

@@ -21,7 +21,7 @@
 		if(!opened)		// if closed, any item at the crate's loc is put in the contents
 			for(var/obj/item/I in src.loc)
 				if(I.density || I.anchored || I == src) continue
-				I.loc = src
+				I.setloc(src)
 
 // Fix for #383 - C4 deleting fridges with corpses
 /obj/structure/closet/Destroy()
@@ -49,13 +49,13 @@
 /obj/structure/closet/proc/dump_contents()
 	//Cham Projector Exception
 	for(var/obj/effect/dummy/chameleon/AD in src)
-		AD.loc = src.loc
+		AD.setloc(src.loc)
 
 	for(var/obj/I in src)
-		I.loc = src.loc
+		I.setloc(src.loc)
 
 	for(var/mob/M in src)
-		M.loc = src.loc
+		M.setloc(src.loc)
 		if(M.client)
 			M.client.eye = M.client.mob
 			M.client.perspective = MOB_PERSPECTIVE
@@ -92,14 +92,14 @@
 	for(var/obj/effect/dummy/chameleon/AD in src.loc)
 		if(itemcount >= storage_capacity)
 			break
-		AD.loc = src
+		AD.setloc(src)
 		itemcount++
 
 	for(var/obj/item/I in src.loc)
 		if(itemcount >= storage_capacity)
 			break
 		if(!I.anchored)
-			I.loc = src
+			I.setloc(src)
 			itemcount++
 
 	for(var/mob/M in src.loc)
@@ -114,7 +114,7 @@
 			M.client.perspective = EYE_PERSPECTIVE
 			M.client.eye = src
 
-		M.loc = src
+		M.setloc(src)
 		itemcount++
 
 	src.icon_state = src.icon_closed
@@ -139,19 +139,19 @@
 	switch(severity)
 		if(1)
 			for(var/atom/movable/A as mob|obj in src)//pulls everything out of the locker and hits it with an explosion
-				A.loc = src.loc
+				A.setloc(src.loc)
 				A.ex_act(severity++)
 			qdel(src)
 		if(2)
 			if(prob(50))
 				for (var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					A.ex_act(severity++)
 				qdel(src)
 		if(3)
 			if(prob(5))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					A.ex_act(severity++)
 				qdel(src)
 
@@ -160,7 +160,7 @@
 	..()
 	if(health <= 0)
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.loc
+			A.setloc(src.loc)
 		del(src)
 
 	return
@@ -169,14 +169,14 @@
 	if(user.environment_smash)
 		visible_message("\red [user] destroys the [src]. ")
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.loc
+			A.setloc(src.loc)
 		del(src)
 
 // this should probably use dump_contents()
 /obj/structure/closet/blob_act()
 	if(prob(75))
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.loc
+			A.setloc(src.loc)
 		del(src)
 
 /obj/structure/closet/meteorhit(obj/O as obj)
@@ -268,7 +268,7 @@
 			return
 		usr.drop_item()
 		if(W)
-			W.loc = src.loc
+			W.setloc(src.loc)
 	else if(istype(W, /obj/item/weapon/packageWrap))
 		return
 	else if(istype(W, /obj/item/weapon/weldingtool))

code/game/objects/structures/crates_lockers/crates.dm

@@ -33,7 +33,7 @@
 
 	playsound(src.loc, 'sound/machines/click.ogg', 15, 1, -3)
 	for(var/obj/O in src)
-		O.loc = get_turf(src)
+		O.setloc(get_turf(src))
 	icon_state = icon_opened
 	src.opened = 1
 	return 1
@@ -55,7 +55,7 @@
 			var/obj/structure/stool/bed/B = O
 			if(B.buckled_mob)
 				continue
-		O.loc = src
+		O.setloc(src)
 		itemcount++
 
 	icon_state = icon_closed
@@ -68,7 +68,7 @@
 			return
 		user.drop_item()
 		if(W)
-			W.loc = src.loc
+			W.setloc(src.loc)
 	else if(istype(W, /obj/item/weapon/packageWrap))
 		return
 	else if(istype(W, /obj/item/stack/cable_coil))
@@ -84,7 +84,7 @@
 		if(rigged)
 			user  << "<span class='notice'>You attach [W] to [src].</span>"
 			user.drop_item()
-			W.loc = src
+			W.setloc(src)
 			return
 	else if(istype(W, /obj/item/weapon/wirecutters))
 		if(rigged)
@@ -385,12 +385,12 @@
 				continue
 			if(!S.anchored)
 				found = 1
-				S.loc = src
+				S.setloc(src)
 				break
 		if(!found)
 			for(var/obj/machinery/M in src.loc)
 				if(!M.anchored)
-					M.loc = src
+					M.setloc(src)
 					break
 	return
 
@@ -413,12 +413,12 @@
 				continue
 			if(!S.anchored)
 				found = 1
-				S.loc = src
+				S.setloc(src)
 				break
 		if(!found)
 			for(var/obj/machinery/M in src.loc)
 				if(!M.anchored)
-					M.loc = src
+					M.setloc(src)
 					break
 	return
 

code/game/objects/structures/crates_lockers/largecrate.dm

@@ -15,7 +15,7 @@
 		new /obj/item/stack/sheet/wood(src)
 		var/turf/T = get_turf(src)
 		for(var/obj/O in contents)
-			O.loc = T
+			O.setloc(T)
 		user.visible_message("<span class='notice'>[user] pries \the [src] open.</span>", \
 							 "<span class='notice'>You pry open \the [src].</span>", \
 							 "<span class='notice'>You hear splitting wood.</span>")
@@ -84,4 +84,4 @@
 /obj/structure/largecrate/cat/attackby(obj/item/weapon/W as obj, mob/user as mob)
 	if(istype(W, /obj/item/weapon/crowbar))
 		new /mob/living/simple_animal/cat(loc)
-	..()
+	..()

code/game/objects/structures/morgue.dm

@@ -46,21 +46,21 @@
 	switch(severity)
 		if(1.0)
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.loc
+				A.setloc(src.loc)
 				ex_act(severity)
 			qdel(src)
 			return
 		if(2.0)
 			if (prob(50))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 				qdel(src)
 				return
 		if(3.0)
 			if (prob(5))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 				qdel(src)
 				return
@@ -76,7 +76,7 @@
 	if (src.connected)
 		for(var/atom/movable/A as mob|obj in src.connected.loc)
 			if (!( A.anchored ))
-				A.loc = src
+				A.setloc(src)
 		playsound(src.loc, 'sound/items/Deconstruct.ogg', 50, 1)
 		//src.connected = null
 		del(src.connected)
@@ -90,7 +90,7 @@
 			src.connected.connected = src
 			src.icon_state = "morgue0"
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.connected.loc
+				A.setloc(src.connected.loc)
 			src.connected.icon_state = "morguet"
 			src.connected.dir = src.dir
 		else
@@ -126,7 +126,7 @@
 		src.connected.connected = src
 		src.icon_state = "morgue0"
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.connected.loc
+			A.setloc(src.connected.loc)
 			//Foreach goto(106)
 		src.connected.icon_state = "morguet"
 	else
@@ -156,7 +156,7 @@
 	if (src.connected)
 		for(var/atom/movable/A as mob|obj in src.loc)
 			if (!( A.anchored ))
-				A.loc = src.connected
+				A.setloc(src.connected)
 			//Foreach goto(26)
 		src.connected.connected = null
 		src.connected.update()
@@ -173,7 +173,7 @@
 		return
 	if (!ismob(user) || user.stat || user.lying || user.stunned)
 		return
-	O.loc = src.loc
+	O.setloc(src.loc)
 	if (user != O)
 		for(var/mob/B in viewers(user, 3))
 			if ((B.client && !( B.blinded )))
@@ -211,21 +211,21 @@
 	switch(severity)
 		if(1.0)
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.loc
+				A.setloc(src.loc)
 				ex_act(severity)
 			qdel(src)
 			return
 		if(2.0)
 			if (prob(50))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 				qdel(src)
 				return
 		if(3.0)
 			if (prob(5))
 				for(var/atom/movable/A as mob|obj in src)
-					A.loc = src.loc
+					A.setloc(src.loc)
 					ex_act(severity)
 				qdel(src)
 				return
@@ -250,7 +250,7 @@
 	if ((src.connected) && (src.locked == 0))
 		for(var/atom/movable/A as mob|obj in src.connected.loc)
 			if (!( A.anchored ))
-				A.loc = src
+				A.setloc(src)
 		playsound(src.loc, 'sound/items/Deconstruct.ogg', 50, 1)
 		//src.connected = null
 		del(src.connected)
@@ -264,7 +264,7 @@
 			src.connected.connected = src
 			src.icon_state = "crema0"
 			for(var/atom/movable/A as mob|obj in src)
-				A.loc = src.connected.loc
+				A.setloc(src.connected.loc)
 			src.connected.icon_state = "cremat"
 		else
 			//src.connected = null
@@ -298,7 +298,7 @@
 		src.connected.connected = src
 		src.icon_state = "crema0"
 		for(var/atom/movable/A as mob|obj in src)
-			A.loc = src.connected.loc
+			A.setloc(src.connected.loc)
 			//Foreach goto(106)
 		src.connected.icon_state = "cremat"
 	else
@@ -374,7 +374,7 @@
 	if (src.connected)
 		for(var/atom/movable/A as mob|obj in src.loc)
 			if (!( A.anchored ))
-				A.loc = src.connected
+				A.setloc(src.connected)
 			//Foreach goto(26)
 		src.connected.connected = null
 		src.connected.update()
@@ -391,7 +391,7 @@
 		return
 	if (!ismob(user) || user.stat || user.lying || user.stunned)
 		return
-	O.loc = src.loc
+	O.setloc(src.loc)
 	if (user != O)
 		for(var/mob/B in viewers(user, 3))
 			if ((B.client && !( B.blinded )))

code/game/objects/structures/safe.dm

@@ -36,7 +36,7 @@ FLOOR SAFES
 			return
 		if(I.w_class + space <= maxspace)
 			space += I.w_class
-			I.loc = src
+			I.setloc(src)
 
 
 /obj/structure/safe/proc/check_unlocked(mob/user as mob, canhear)
@@ -147,7 +147,7 @@ FLOOR SAFES
 		if(I.w_class + space <= maxspace)
 			space += I.w_class
 			user.drop_item()
-			I.loc = src
+			I.setloc(src)
 			user << "<span class='notice'>You put [I] in [src].</span>"
 			updateUsrDialog()
 			return

code/game/objects/structures/transit_tubes.dm

@@ -49,7 +49,7 @@
 
 /obj/structure/transit_tube_pod/Destroy()
 	for(var/atom/movable/AM in contents)
-		AM.loc = loc
+		AM.setloc(loc)
 
 	..()
 
@@ -60,8 +60,7 @@ obj/structure/ex_act(severity)
 	switch(severity)
 		if(1.0)
 			for(var/atom/movable/AM in contents)
-				AM.loc = loc
-				// TODO: What the fuck are you doing
+				AM.setloc(loc)
 				AM.ex_act(severity++)
 
 			qdel(src)
@@ -69,7 +68,7 @@ obj/structure/ex_act(severity)
 		if(2.0)
 			if(prob(50))
 				for(var/atom/movable/AM in contents)
-					AM.loc = loc
+					AM.setloc(loc)
 					AM.ex_act(severity++)
 
 				qdel(src)
@@ -104,7 +103,7 @@ obj/structure/ex_act(severity)
 		AM << "<span class='warning'>The tube's support pylons block your way.</span>"
 		return ..()
 	else
-		AM.loc = src.loc
+		AM.setloc(src.loc)
 		AM << "<span class='info'>You slip under the tube.</span>"
 
 /obj/structure/transit_tube/station/New(loc)
@@ -116,7 +115,7 @@ obj/structure/ex_act(severity)
 	if(!pod_moving && icon_state == "open" && istype(AM, /mob))
 		for(var/obj/structure/transit_tube_pod/pod in loc)
 			if(!pod.moving && pod.dir in directions())
-				AM.loc = pod
+				AM.setloc(pod)
 				return
 
 
@@ -436,7 +435,7 @@ obj/structure/ex_act(severity)
 	if(istype(mob, /mob) && mob.client)
 		// If the pod is not in a tube at all, you can get out at any time.
 		if(!(locate(/obj/structure/transit_tube) in loc))
-			mob.loc = loc
+			mob.setloc(loc)
 			mob.client.Move(get_step(loc, direction), direction)
 
 			//if(moving && istype(loc, /turf/space))
@@ -449,7 +448,7 @@ obj/structure/ex_act(severity)
 					if(!station.pod_moving)
 						if(direction == station.dir)
 							if(station.icon_state == "open")
-								mob.loc = loc
+								mob.setloc(loc)
 								mob.client.Move(get_step(loc, direction), direction)
 
 							else

code/game/objects/structures/watercloset.dm

@@ -31,7 +31,7 @@
 			if(ishuman(user))
 				user.put_in_hands(I)
 			else
-				I.loc = get_turf(src)
+				I.setloc(get_turf(src))
 			user << "<span class='notice'>You find \an [I] in the cistern.</span>"
 			w_items -= I.w_class
 			return
@@ -84,7 +84,7 @@
 			user << "<span class='notice'>The cistern is full.</span>"
 			return
 		user.drop_item()
-		I.loc = src
+		I.setloc(src)
 		w_items += I.w_class
 		user << "You carefully place \the [I] into the cistern."
 		return

code/modules/DetectiveWork/detective_work.dm

@@ -142,7 +142,7 @@ obj/machinery/computer/forensic_scanning
 					temp = null
 			if("eject")
 				if(scanning)
-					scanning.loc = loc
+					scanning.setloc(loc)
 					scanning = null
 				else
 					temp = "Eject Failed: No Object"
@@ -152,13 +152,13 @@ obj/machinery/computer/forensic_scanning
 				if(I && istype(I))
 					if(istype(I, /obj/item/weapon/evidencebag))
 						scanning = I.contents[1]
-						scanning.loc = src
+						scanning.setloc(src)
 						I.overlays -= scanning
 						I.icon_state = "evidenceobj"
 					else
 						scanning = I
 						M.drop_item()
-						I.loc = src
+						I.setloc(src)
 				else
 					usr << "Invalid Object Rejected."
 			if("card")  //Processing a fingerprint card.
@@ -173,11 +173,11 @@ obj/machinery/computer/forensic_scanning
 					if(card.amount > 1 || !card.fingerprints.len)
 						usr << "\red ERROR: No prints/too many cards."
 						if(card.loc == src)
-							card.loc = src.loc
+							card.setloc(src.loc)
 						card = null
 						return
 					M.drop_item()
-					I.loc = src
+					I.setloc(src)
 					process_card()
 				else
 					usr << "\red Invalid Object Rejected."
@@ -607,7 +607,7 @@ obj/machinery/computer/forensic_scanning
 		else
 			usr << "\red ERROR: No prints/too many cards."
 			if(card.loc == src)
-				card.loc = src.loc
+				card.setloc(src.loc)
 			card = null
 			return
 		return

code/modules/reagents/Chemistry-Machinery.dm

@@ -208,7 +208,7 @@
 	if(istype(B, /obj/item/weapon/reagent_containers/glass) || istype(B,/obj/item/weapon/reagent_containers/food))
 		src.beaker =  B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You set [B] on the machine."
 		nanomanager.update_uis(src) // update all UIs attached to src
 		icon_state = "[icon_state]2"
@@ -325,7 +325,7 @@
 			return
 		src.beaker = B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You add the beaker to the machine!"
 		src.updateUsrDialog()
 		icon_state = "mixer1"
@@ -338,7 +338,7 @@
 
 		src.loaded_pill_bottle = B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You add the pill bottle into the dispenser slot!"
 		src.updateUsrDialog()
 	return
@@ -354,7 +354,7 @@
 
 	if (href_list["ejectp"])
 		if(loaded_pill_bottle)
-			loaded_pill_bottle.loc = src.loc
+			loaded_pill_bottle.setloc(src.loc)
 			loaded_pill_bottle = null
 	else if(href_list["close"])
 		usr << browse(null, "window=chemmaster")
@@ -966,7 +966,7 @@
 		else
 			src.beaker =  O
 			user.drop_item()
-			O.loc = src
+			O.setloc(src)
 			update_icon()
 			src.updateUsrDialog()
 			return 0
@@ -980,7 +980,7 @@
 
 		for (var/obj/item/weapon/reagent_containers/food/snacks/grown/G in O.contents)
 			O.contents -= G
-			G.loc = src
+			G.setloc(src)
 			holdingitems += G
 			if(holdingitems && holdingitems.len >= limit) //Sanity checking so the blender doesn't overfill
 				user << "You fill the All-In-One grinder to the brim."
@@ -1003,7 +1003,7 @@
 		return 1
 
 	user.before_take_item(O)
-	O.loc = src
+	O.setloc(src)
 	holdingitems += O
 	src.updateUsrDialog()
 	return 0
@@ -1086,7 +1086,7 @@
 		return
 	if (!beaker)
 		return
-	beaker.loc = src.loc
+	beaker.setloc(src.loc)
 	beaker = null
 	update_icon()
 
@@ -1098,7 +1098,7 @@
 		return
 
 	for(var/obj/item/O in holdingitems)
-		O.loc = src.loc
+		O.setloc(src.loc)
 		holdingitems -= O
 	holdingitems = list()
 

code/modules/recycling/disposal.dm

@@ -112,7 +112,7 @@
 					if (GM.client)
 						GM.client.perspective = EYE_PERSPECTIVE
 						GM.client.eye = src
-					GM.loc = src
+					GM.setloc(src)
 					for (var/mob/C in viewers(src))
 						C.show_message("\red [GM.name] has been placed in the [src] by [user].", 3)
 					del(G)
@@ -125,7 +125,7 @@
 
 		user.drop_item()
 		if(I)
-			I.loc = src
+			I.setloc(src)
 
 		user << "You place \the [I] into the [src]."
 		for(var/mob/M in viewers(src))
@@ -170,7 +170,7 @@
 		if (target.client)
 			target.client.perspective = EYE_PERSPECTIVE
 			target.client.eye = src
-		target.loc = src
+		target.setloc(src)
 
 		for (var/mob/C in viewers(src))
 			if(C == user)
@@ -197,7 +197,7 @@
 		if (user.client)
 			user.client.eye = user.client.mob
 			user.client.perspective = MOB_PERSPECTIVE
-		user.loc = src.loc
+		user.setloc(src.loc)
 		update()
 		return
 
@@ -308,7 +308,7 @@
 	// eject the contents of the disposal unit
 	proc/eject()
 		for(var/atom/movable/AM in src)
-			AM.loc = src.loc
+			AM.setloc(src.loc)
 			AM.pipe_eject(0)
 		update()
 
@@ -367,7 +367,7 @@
 			return
 
 		use_power = 1
-		
+
 		if(mode != 1)		// if off or ready, no need to charge
 			return
 
@@ -447,7 +447,7 @@
 			for(var/atom/movable/AM in H)
 				target = get_offset_target_turf(src.loc, rand(5)-rand(5), rand(5)-rand(5))
 
-				AM.loc = src.loc
+				AM.setloc(src.loc)
 				AM.pipe_eject(0)
 				spawn(1)
 					if(AM)
@@ -462,7 +462,7 @@
 			if(istype(I, /obj/item/projectile))
 				return
 			if(prob(75))
-				I.loc = src
+				I.setloc(src)
 				for(var/mob/M in viewers(src))
 					M.show_message("\the [I] lands in \the [src].", 3)
 			else
@@ -510,7 +510,7 @@
 		// now everything inside the disposal gets put into the holder
 		// note AM since can contain mobs or objs
 		for(var/atom/movable/AM in D)
-			AM.loc = src
+			AM.setloc(src)
 			if(istype(AM, /mob/living/carbon/human))
 				var/mob/living/carbon/human/H = AM
 				if(M_FAT in H.mutations)		// is a human and fat?
@@ -587,7 +587,7 @@
 	// used when a a holder meets a stuck holder
 	proc/merge(var/obj/structure/disposalholder/other)
 		for(var/atom/movable/AM in other)
-			AM.loc = src		// move everything in other holder to this one
+			AM.setloc(src)		// move everything in other holder to this one
 			if(ismob(AM))
 				var/mob/M = AM
 				if(M.client)	// if a client mob, update eye to follow this holder
@@ -649,7 +649,7 @@
 				// this is unlikely, but just dump out everything into the turf in case
 
 				for(var/atom/movable/AM in H)
-					AM.loc = T
+					AM.setloc(T)
 					AM.pipe_eject(0)
 				del(H)
 				..()
@@ -680,9 +680,9 @@
 			if(H2 && !H2.active)
 				H.merge(H2)
 
-			H.loc = P
+			H.setloc(P)
 		else			// if wasn't a pipe, then set loc to turf
-			H.loc = T
+			H.setloc(T)
 			return null
 
 		return P
@@ -721,7 +721,7 @@
 
 		if(T.density)		// dense ouput turf, so stop holder
 			H.active = 0
-			H.loc = src
+			H.setloc(src)
 			return
 		if(T.intact && istype(T,/turf/simulated/floor)) //intact floor, pop the tile
 			var/turf/simulated/floor/F = T
@@ -741,7 +741,7 @@
 			playsound(src, 'sound/machines/hiss.ogg', 50, 0, 0)
 			if(H)
 				for(var/atom/movable/AM in H)
-					AM.loc = T
+					AM.setloc(T)
 					AM.pipe_eject(direction)
 					spawn(1)
 						if(AM)
@@ -756,7 +756,7 @@
 				for(var/atom/movable/AM in H)
 					target = get_offset_target_turf(T, rand(5)-rand(5), rand(5)-rand(5))
 
-					AM.loc = T
+					AM.setloc(T)
 					AM.pipe_eject(0)
 					spawn(1)
 						if(AM)
@@ -789,7 +789,7 @@
 				// this is unlikely, but just dump out everything into the turf in case
 
 				for(var/atom/movable/AM in H)
-					AM.loc = T
+					AM.setloc(T)
 					AM.pipe_eject(0)
 				del(H)
 				return
@@ -903,9 +903,6 @@
 		update()
 		return
 
-
-
-
 //a three-way junction with dir being the dominant direction
 /obj/structure/disposalpipe/junction
 	icon_state = "pipe-j1"
@@ -1028,9 +1025,9 @@
 			if(H2 && !H2.active)
 				H.merge(H2)
 
-			H.loc = P
+			H.setloc(P)
 		else			// if wasn't a pipe, then set loc to turf
-			H.loc = T
+			H.setloc(T)
 			return null
 
 		return P
@@ -1090,9 +1087,9 @@
 			if(H2 && !H2.active)
 				H.merge(H2)
 
-			H.loc = P
+			H.setloc(P)
 		else			// if wasn't a pipe, then set loc to turf
-			H.loc = T
+			H.setloc(T)
 			return null
 
 		return P
@@ -1259,7 +1256,7 @@
 
 		if(H)
 			for(var/atom/movable/AM in H)
-				AM.loc = src.loc
+				AM.setloc(src.loc)
 				AM.pipe_eject(dir)
 				spawn(5)
 					AM.throw_at(target, 3, 1)

code/modules/research/xenoarchaeology/machinery/geosample_scanner.dm

@@ -92,7 +92,7 @@
 				update_coolant()
 				return
 		user.drop_item()
-		I.loc = src
+		I.setloc(src)
 		scanned_item = I
 
 /obj/machinery/radiocarbon_spectrometer/proc/update_coolant()
@@ -144,15 +144,15 @@
 	data["radiation"] = round(radiation)
 	data["t_left_radspike"] = round(t_left_radspike)
 	data["rad_shield_on"] = rad_shield
-	
+
 	// update the ui if it exists, returns null if no ui is passed/found
-	ui = nanomanager.try_update_ui(user, src, ui_key, ui, data)	
+	ui = nanomanager.try_update_ui(user, src, ui_key, ui, data)
 	if (!ui)
 		// the ui does not exist, so we'll create a new() one
         // for a list of parameters and their descriptions see the code docs in \code\modules\nano\nanoui.dm
 		ui = new(user, src, ui_key, "geoscanner.tmpl", "High Res Radiocarbon Spectrometer", 900, 825)
 		// when the ui is first opened this is the data it will use
-		ui.set_initial_data(data)		
+		ui.set_initial_data(data)
 		// open the new ui window
 		ui.open()
 		// auto update every Master Controller tick
@@ -319,7 +319,7 @@
 		last_scan_data = P.info
 		P.loc = src.loc
 
-		scanned_item.loc = src.loc
+		scanned_item.setloc(src.loc)
 		scanned_item = null
 
 /obj/machinery/radiocarbon_spectrometer/Topic(href, href_list)
@@ -355,7 +355,7 @@
 
 	if(href_list["ejectItem"])
 		if(scanned_item)
-			scanned_item.loc = src.loc
+			scanned_item.setloc(src.loc)
 			scanned_item = null
 
 	add_fingerprint(usr)