diff --git a/code/datums/spell.dm b/code/datums/spell.dm
index 29fe4dfd7ed..f717b4534e4 100644
--- a/code/datums/spell.dm
+++ b/code/datums/spell.dm
@@ -176,7 +176,7 @@ var/list/spells = typesof(/obj/effect/proc_holder/spell) //needed for the badmin
 /obj/effect/proc_holder/spell/proc/perform(list/targets, recharge = 1, mob/user = usr) //if recharge is started is important for the trigger spells
 	before_cast(targets)
 	invocation(user)
-	if(user.ckey)
+	if(user && user.ckey)
 		user.attack_log += text("\[[time_stamp()]\] <span class='danger'>[user.real_name] ([user.ckey]) cast the spell [name].</span>")
 	spawn(0)
 		if(charge_type == "recharge" && recharge)
diff --git a/code/game/gamemodes/revolution/revolution.dm b/code/game/gamemodes/revolution/revolution.dm
index fe21e018bd8..43d2b2f6ae7 100644
--- a/code/game/gamemodes/revolution/revolution.dm
+++ b/code/game/gamemodes/revolution/revolution.dm
@@ -192,7 +192,7 @@
 			if(khrushchev.current && khrushchev.current.client && khrushchev.current.stat != DEAD)
 				if(ROLE_REV in khrushchev.current.client.prefs.be_special)
 					promotable_revs += khrushchev
-		if(promotable_revs)
+		if(promotable_revs.len)
 			var/datum/mind/stalin = pick(promotable_revs)
 			revolutionaries -= stalin
 			head_revolutionaries += stalin
diff --git a/code/game/mecha/equipment/tools/mining_tools.dm b/code/game/mecha/equipment/tools/mining_tools.dm
index 8d94ed2e15e..07231ed8854 100644
--- a/code/game/mecha/equipment/tools/mining_tools.dm
+++ b/code/game/mecha/equipment/tools/mining_tools.dm
@@ -118,12 +118,13 @@
 		var/obj/mecha/working/mecha = loc
 		if(!mecha.occupant)
 			return
+		var/mob/pilot = mecha.occupant
 		var/list/occupant = list()
-		occupant |= mecha.occupant
-		mecha.occupant.sight |= SEE_TURFS
+		occupant |= pilot
+		pilot.sight |= SEE_TURFS
 		scanning = 1
 		mineral_scan_pulse(occupant,get_turf(loc))
 		spawn(equip_cooldown)
 			scanning = 0
-			mecha.occupant.sight -= SEE_TURFS
+			pilot.sight -= SEE_TURFS
 
diff --git a/code/game/turfs/simulated/floor/plating.dm b/code/game/turfs/simulated/floor/plating.dm
index 215a52c08bd..ab4bac63354 100644
--- a/code/game/turfs/simulated/floor/plating.dm
+++ b/code/game/turfs/simulated/floor/plating.dm
@@ -214,8 +214,9 @@
 		else if (istype(AM, /mob/living))
 			var/mob/living/L = AM
 			L.adjustFireLoss(20)
-			L.adjust_fire_stacks(20)
-			L.IgniteMob()
+			if(L) //mobs turning into object corpses could get deleted here.
+				L.adjust_fire_stacks(20)
+				L.IgniteMob()
 
 /turf/simulated/floor/plating/lava/attackby(obj/item/C, mob/user, params) //Lava isn't a good foundation to build on
 	return
diff --git a/code/modules/paperwork/paper.dm b/code/modules/paperwork/paper.dm
index ef2bf3b66e4..8f913f964f2 100644
--- a/code/modules/paperwork/paper.dm
+++ b/code/modules/paperwork/paper.dm
@@ -198,6 +198,7 @@
 
 		t = "<font face=\"[PEN_FONT]\" color=[P.colour]>[t]</font>"
 	else // If it is a crayon, and he still tries to use these, make them empty!
+		var/obj/item/toy/crayon/C = P
 		t = replacetext(t, "\[*\]", "")
 		t = replacetext(t, "\[hr\]", "")
 		t = replacetext(t, "\[small\]", "")
@@ -205,7 +206,7 @@
 		t = replacetext(t, "\[list\]", "")
 		t = replacetext(t, "\[/list\]", "")
 
-		t = "<font face=\"[CRAYON_FONT]\" color=[P.colour]><b>[t]</b></font>"
+		t = "<font face=\"[CRAYON_FONT]\" color=[C.paint_color]><b>[t]</b></font>"
 
 //	t = replacetext(t, "#", "") // Junk converted to nothing!