Surely this can't cause problems (#22962)

Author: Oblisk234

code/modules/mob/mob.dm

@@ -23,6 +23,11 @@
   * Returns QDEL_HINT_HARDDEL (don't change this)
   */
 /mob/Destroy()//This makes sure that mobs with clients/keys are not just deleted from the game.
+	if(client)
+		stack_trace("Mob with client has been deleted")
+	else if(ckey)
+		stack_trace("Mob without client but with associated ckey has been deleted.")
+
 	remove_from_mob_list()
 	remove_from_dead_mob_list()
 	remove_from_alive_mob_list()