POLARIS: Use drop_location() for things

code/game/area/areas.dm

@@ -339,3 +339,9 @@ var/list/mob/living/forced_ambiance_list = new
 
 /area/proc/shuttle_departed()
 	return TRUE
+
+/area/AllowDrop()
+	CRASH("Bad op: area/AllowDrop() called")
+
+/area/drop_location()
+	CRASH("Bad op: area/drop_location() called")

code/game/atoms.dm

@@ -502,3 +502,12 @@
 	if(A && A.has_gravity())
 		return TRUE
 	return FALSE
+
+/atom/proc/drop_location()
+	var/atom/L = loc
+	if(!L)
+		return null
+	return L.AllowDrop() ? L : get_turf(L)
+
+/atom/proc/AllowDrop()
+	return FALSE

code/game/atoms_movable.dm

@@ -296,7 +296,3 @@
 /atom/movable/proc/adjust_scale(new_scale)
 	icon_scale = new_scale
 	update_transform()
-
-// Stub for now, override with better things.
-/atom/movable/proc/drop_location()
-	return loc

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

@@ -723,4 +723,7 @@
 	..()
 	if(open && contents.len)
 		var/display_item = contents[1]
-		to_chat(user, "<span class='notice'>\The [src] contains \the [display_item]!</span>")
+		to_chat(user, "<span class='notice'>\The [src] contains \the [display_item]!</span>")
+
+/obj/item/weapon/storage/AllowDrop()
+	return TRUE

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

@@ -416,3 +416,6 @@
 
 /obj/structure/closet/onDropInto(var/atom/movable/AM)
 	return
+
+/obj/structure/closet/AllowDrop()
+	return TRUE

code/game/turfs/turf.dm

@@ -280,3 +280,6 @@ var/const/enterloopsanity = 100
 		if(isliving(AM))
 			var/mob/living/M = AM
 			M.turf_collision(src, speed)
+
+/turf/AllowDrop()
+	return TRUE

code/modules/mob/inventory.dm

@@ -209,7 +209,7 @@ var/list/slot_equipment_priority = list( \
 		if(target)
 			I.forceMove(target)
 		else
-			I.dropInto(loc)
+			I.dropInto(drop_location())
 		I.dropped(src)
 	return 1