Fixes #5088

also fixes more runtimes that mloc gave me

code/WorkInProgress/buildmode.dm

@@ -259,6 +259,7 @@
 
 		if(4)
 			if(pa.Find("left"))
+				if(istype(object, /atom/movable))
 					holder.throw_atom = object
 			if(pa.Find("right"))
 				if(holder.throw_atom)

code/_onclick/click.dm

@@ -16,8 +16,10 @@
 	Note that this proc can be overridden, and is in the case of screen objects.
 */
 /atom/Click(location,control,params)
+	if(src)
 		usr.ClickOn(src, params)
 /atom/DblClick(location,control,params)
+	if(src)
 		usr.DblClickOn(src,params)
 
 /*

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

@@ -113,6 +113,7 @@ var/list/department_radio_keys = list(
 
 		for(var/obj/O in objects)
 			spawn(0)
+				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)

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

@@ -398,22 +398,10 @@ 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"])]."
 		return