Fixes a few runtimes

code/game/machinery/rechargestation.dm

@@ -210,7 +210,7 @@
 /obj/machinery/recharge_station/verb/move_inside(var/mob/user = usr)
 	set category = "Object"
 	set src in oview(1)
-	if(!user)
+	if(!user || !usr)
 		return
 
 	if (usr.stat != CONSCIOUS)

code/game/turfs/simulated/walls.dm

@@ -66,8 +66,9 @@
 
 	smooth_icon(src)
 	if(!damage)
-		overlays -= damage_overlays[damage_overlay]
-		damage_overlay = 0
+		if(damage_overlay)
+			overlays -= damage_overlays[damage_overlay]
+			damage_overlay = 0
 		return
 
 	var/overlay = round(damage / damage_cap * damage_overlays.len) + 1
@@ -76,12 +77,11 @@
 
 	if(damage_overlay && overlay == damage_overlay) //No need to update.
 		return
-	overlays -= damage_overlays[damage_overlay]
+	if(damage_overlay)
+		overlays -= damage_overlays[damage_overlay]
 	overlays += damage_overlays[overlay]
 	damage_overlay = overlay
 
-	return
-
 /turf/simulated/wall/proc/generate_overlays()
 	var/alpha_inc = 256 / damage_overlays.len
 

code/game/verbs/suicide.dm

@@ -3,7 +3,7 @@
 /mob/living/carbon/human/proc/do_suicide(damagetype, byitem)
 	var/threshold = (config.health_threshold_crit + config.health_threshold_dead) / 2
 	var/dmgamt = maxHealth - threshold
-	
+
 	var/damage_mod = 1
 	switch(damagetype) //Sorry about the magic numbers.
 					   //brute = 1, burn = 2, tox = 4, oxy = 8
@@ -163,7 +163,7 @@
 		var/turf/T = get_turf_or_move(card.loc)
 		for (var/mob/M in viewers(T))
 			M.show_message("\blue [src] flashes a message across its screen, \"Wiping core files. Please acquire a new personality to continue using pAI device functions.\"", 3, "\blue [src] bleeps electronically.", 2)
-		death(0)
+		death(0, 1)
 	else
 		to_chat(src, "Aborting suicide attempt.")
 

code/modules/assembly/timer.dm

@@ -43,7 +43,8 @@
 	timer_end()
 		if((!secured)||(cooldown > 0))	return 0
 		pulse(0)
-		loc.visible_message("\icon[src] *beep* *beep*", "*beep* *beep*")
+		if(loc)
+			loc.visible_message("\icon[src] *beep* *beep*", "*beep* *beep*")
 		cooldown = 2
 		spawn(10)
 			process_cooldown()

code/modules/mob/living/silicon/pai/death.dm

@@ -1,12 +1,13 @@
-/mob/living/silicon/pai/death(gibbed)
+/mob/living/silicon/pai/death(gibbed, cleanWipe)
 	if(stat == DEAD)
 		return
 
-	force_fold_out()
+	if(!cleanWipe)
+		force_fold_out()
 
 	var/turf/T = get_turf_or_move(loc)
 	for (var/mob/M in viewers(T))
-		M.show_message("\red [src] emits a dull beep before it loses power and collapses.", 3, "\red You hear a dull beep followed by the sound of glass crunching.", 2)
+		M.show_message("<span class=warning>[src] emits a dull beep before it loses power and collapses.</span>", 3, "<span class=warning>You hear a dull beep followed by the sound of glass crunching.</span>", 2)
 	name = "pAI debris"
 	desc = "The unfortunate remains of some poor personal AI device."
 	icon_state = "[chassis]_dead"
@@ -24,5 +25,5 @@
 	if(mind)	qdel(mind)
 	living_mob_list -= src
 	ghostize()
-	if(icon_state != "[chassis]_dead")
+	if(icon_state != "[chassis]_dead" || cleanWipe)
 		qdel(src)

code/modules/mob/living/simple_animal/hostile/bees.dm

@@ -140,13 +140,15 @@
 
 /mob/living/simple_animal/hostile/poison/bees/worker/Destroy()
 	if(beehome)
-		beehome.bees.Remove(src)
+		if(beehome.bees)
+			beehome.bees.Remove(src)
 		beehome = null
 	..()
 
 /mob/living/simple_animal/hostile/poison/bees/worker/death(gibbed)
 	if(beehome)
-		beehome.bees.Remove(src)
+		if(beehome.bees)
+			beehome.bees.Remove(src)
 		beehome = null
 	..()
 

code/modules/mob/say.dm

@@ -40,7 +40,7 @@
 		usr.emote(message)
 
 /mob/proc/say_dead(var/message)
-	if(!src.client.holder)
+	if(!(client && client.holder))
 		if(!config.dsay_allowed)
 			to_chat(src, "<span class='danger'>Deadchat is globally muted.</span>")
 			return

code/modules/surgery/organs_internal.dm

@@ -31,7 +31,7 @@
 			return 0
 		if(target.get_species() == "Machine")//i know organ robot might be enough but i am not taking chances...
 			return 0
-		if(!affected.encased)//no bone, problem.
+		if(affected && !affected.encased) //no bone, problem.
 			return 0
 		return 1
 
@@ -43,9 +43,9 @@
 		if(affected && (affected.status & ORGAN_ROBOT))
 			return 0//no operating on robotic limbs in an organic surgery
 
-		if(!affected.encased)//no bones no problem.
-			return 1
-		return 0
+		if(affected && affected.encased) //no bones no problem.
+			return 0
+		return 1
 
 /datum/surgery/organ_manipulation/alien/can_start(mob/user, mob/living/carbon/target)
 	if(istype(target,/mob/living/carbon/alien/humanoid))

interface/interface.dm

@@ -221,7 +221,10 @@ Any-Mode: (hotkey doesn't need to be on)
 	set name = "Set Hotkey Mode"
 	set category = "Preferences"
 
-	hotkeytype = input("Choose hotkey mode", "Hotkey mode") as null|anything in hotkeylist//ask the user for the hotkey type
+	var/hkt = input("Choose hotkey mode", "Hotkey mode") as null|anything in hotkeylist//ask the user for the hotkey type
+	if(!hkt)
+		return
+	hotkeytype = hkt
 
 	var/hotkeys = hotkeylist[hotkeytype]//get the list containing the hotkey names
 	var/hotkeyname = hotkeys[hotkeyon ? "on" : "off"]//get the name of the hotkey, to not clutter winset() to much