Fixes #5088

also fixes more runtimes that mloc gave me

code/WorkInProgress/buildmode.dm

@@ -259,7 +259,8 @@
 
 		if(4)
 			if(pa.Find("left"))
-				holder.throw_atom = object
+				if(istype(object, /atom/movable))
+					holder.throw_atom = object
 			if(pa.Find("right"))
 				if(holder.throw_atom)
 					holder.throw_atom.throw_at(object, 10, 1)

code/_onclick/click.dm

@@ -16,9 +16,11 @@
 	Note that this proc can be overridden, and is in the case of screen objects.
 */
 /atom/Click(location,control,params)
-	usr.ClickOn(src, params)
+	if(src)
+		usr.ClickOn(src, params)
 /atom/DblClick(location,control,params)
-	usr.DblClickOn(src,params)
+	if(src)
+		usr.DblClickOn(src,params)
 
 /*
 	Standard mob ClickOn()

code/game/objects/effects/effect_system.dm

@@ -27,24 +27,6 @@ would spawn and follow the beaker, even if it is carried or thrown.
 		reagents.delete()
 	return
 
-
-/obj/effect/effect/water/New()
-	..()
-	//var/turf/T = src.loc
-	//if (istype(T, /turf))
-	//	T.firelevel = 0 //TODO: FIX
-	spawn( 70 )
-		delete()
-		return
-	return
-
-/obj/effect/effect/water/Del()
-	//var/turf/T = src.loc
-	//if (istype(T, /turf))
-	//	T.firelevel = 0 //TODO: FIX
-	..()
-	return
-
 /obj/effect/effect/water/Move(turf/newloc)
 	//var/turf/T = src.loc
 	//if (istype(T, /turf))

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

@@ -123,6 +123,7 @@
 						W.reagents.reaction(atm)
 					if(W.loc == my_target) break
 					sleep(2)
+				W.delete()
 
 		if((istype(usr.loc, /turf/space)) || (usr.lastarea.has_gravity == 0))
 			user.inertia_dir = get_dir(target, user)

code/modules/admin/verbs/adminpm.dm

@@ -114,7 +114,7 @@
 
 	//play the recieving admin the adminhelp sound (if they have them enabled)
 	//non-admins shouldn't be able to disable this
-	if(C.prefs.toggles & SOUND_ADMINHELP)
+	if(C.prefs && C.prefs.toggles & SOUND_ADMINHELP)
 		C << 'sound/effects/adminhelp.ogg'
 
 	log_admin("PM: [key_name(src)]->[key_name(C)]: [msg]")

code/modules/mob/living/say.dm

@@ -103,7 +103,7 @@ var/list/department_radio_keys = list(
 				var/obj/O = I
 				hearturfs += O.locs[1]
 				objects |= O
-		
+
 		for(var/mob/M in player_list)
 			if(M.stat == DEAD && M.client && (M.client.prefs.toggles & CHAT_GHOSTEARS))
 				listening |= M
@@ -113,7 +113,8 @@ var/list/department_radio_keys = list(
 
 		for(var/obj/O in objects)
 			spawn(0)
-				O.hear_talk(src, message, verb, speaking)	
+				if(O) //It's possible that it could be deleted in the meantime.
+					O.hear_talk(src, message, verb, speaking)
 
 	var/speech_bubble_test = say_test(message)
 	var/image/speech_bubble = image('icons/mob/talk.dmi',src,"h[speech_bubble_test]")

code/modules/mob/living/silicon/ai/ai.dm

@@ -241,13 +241,13 @@ var/list/ai_list = list()
 			for (var/area_name in alarmlist)
 				var/datum/alarm/alarm = alarmlist[area_name]
 				dat += "<NOBR>"
-				
+
 				var/cameratext = ""
 				if (alarm.cameras)
 					for (var/obj/machinery/camera/I in alarm.cameras)
 						cameratext += text("[]<A HREF=?src=\ref[];switchcamera=\ref[]>[]</A>", (cameratext=="") ? "" : " | ", src, I, I.c_tag)
 				dat += text("-- [] ([])", alarm.area.name, (cameratext)? cameratext : "No Camera")
-				
+
 				if (alarm.sources.len > 1)
 					dat += text(" - [] sources", alarm.sources.len)
 				dat += "</NOBR><BR>\n"
@@ -398,23 +398,11 @@ var/list/ai_list = list()
 
 	if (href_list["track"])
 		var/mob/target = locate(href_list["track"]) in mob_list
-/*
-		var/mob/living/silicon/ai/A = locate(href_list["track2"]) in mob_list
-		if(A && target)
-			A.ai_actual_track(target)
-*/
 
-		//Strip off any "(as Derplord)".
-		//If there's a way to do this via a var that doesn't give the AI extra info, please let me know.
-		var/seeking = target.name
-		var/index = findtext(seeking, "(as ")
-		if(index)
-			seeking = copytext(seeking, 1, index-1)
-
-		if(target && html_decode(href_list["trackname"]) == seeking)
+		if(target && (!istype(target, /mob/living/carbon/human) || html_decode(href_list["trackname"]) == target:get_face_name()))
 			ai_actual_track(target)
-		else
-			src << "\red System error. Cannot locate [html_decode(href_list["trackname"])]."
+
+		src << "\red System error. Cannot locate [html_decode(href_list["trackname"])]."
 		return
 
 	else if (href_list["faketrack"])
@@ -530,24 +518,24 @@ var/list/ai_list = list()
 /mob/living/silicon/ai/triggerAlarm(var/class, area/A, list/cameralist, var/source)
 	if (stat == 2)
 		return 1
-	
+
 	..()
-	
+
 	var/cameratext = ""
 	for (var/obj/machinery/camera/C in cameralist)
 		cameratext += "[(cameratext == "")? "" : "|"]<A HREF=?src=\ref[src];switchcamera=\ref[C]>[C.c_tag]</A>"
-			
+
 	queueAlarm("--- [class] alarm detected in [A.name]! ([(cameratext)? cameratext : "No Camera"])", class)
-	
+
 	if (viewalerts) ai_alerts()
 
 /mob/living/silicon/ai/cancelAlarm(var/class, area/A as area, var/source)
 	var/has_alarm = ..()
-	
+
 	if (!has_alarm)
 		queueAlarm(text("--- [] alarm in [] has been cleared.", class, A.name), class, 0)
 		if (viewalerts) ai_alerts()
-	
+
 	return has_alarm
 
 /mob/living/silicon/ai/cancel_camera()