Runtime fixes

Moved delete to trial admins because they can already mass delete and that's not particularly as helpful as regular delete (but a lot more destructive)
Trialmins can now toggle adminhelp sounds without observing

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3397 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/mob/living/carbon/human/human.dm

@@ -2051,7 +2051,7 @@ It can still be worn/put on as normal.
 	var/obj/item/device/pda/pda = wear_id
 	var/obj/item/weapon/card/id/id = wear_id
 	if (istype(pda))
-		if (pda.id)
+		if (pda.id && istype(pda.id, /obj/item/weapon/card/id))
 			. = pda.id.assignment
 		else
 			. = pda.ownjob

code/modules/mob/living/carbon/human/life.dm

@@ -467,7 +467,7 @@
 					var/transfer_coefficient
 
 					transfer_coefficient = 1
-					if(head && (head.body_parts_covered & HEAD) && (environment.temperature < head.protective_temperature))
+					if(head && (head.body_parts_covered & HEAD) && (environment.temperature < head.protective_temperature) && !istype(head, /obj/item/weapon/paper))
 						transfer_coefficient *= head.heat_transfer_coefficient
 					if(wear_mask && (wear_mask.body_parts_covered & HEAD) && (environment.temperature < wear_mask.protective_temperature))
 						transfer_coefficient *= wear_mask.heat_transfer_coefficient

code/modules/mob/mob_grab.dm

@@ -83,6 +83,8 @@
 
 
 /obj/item/weapon/grab/proc/s_click(obj/screen/S as obj)
+	if (!affecting)
+		return
 	if (assailant.next_move > world.time)
 		return
 	if ((!( assailant.canmove ) || assailant.lying))

code/modules/mob/new_player/preferences.dm

@@ -374,6 +374,8 @@ datum/preferences
 
 
 	proc/process_link(mob/user, list/link_tags)
+		if(!usr)
+			return
 		if(link_tags["occ"])
 			if(link_tags["cancel"])
 				user << browse(null, "window=\ref[user]occupation")