oh, and lets add a length check real quick to make sure the sleeper actually has shit in it

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

@@ -583,6 +583,8 @@
 /mob/living/silicon/robot/crowbar_act(mob/living/user, obj/item/I) //TODO: make fucking everything up there in that attackby() proc use the proper tool_act() procs. But honestly, who has time for that? 'cause I know for sure that you, the person reading this, sure as hell doesn't.
 	var/validbreakout = FALSE
 	for(var/obj/item/dogborg/sleeper/S in held_items)
+		if(!LAZYLEN(S.contents))
+			continue
 		if(!validbreakout)
 			visible_message("<span class='notice'>[user] wedges [I] into the crevice separating [S] from [src]'s chassis, and begins to pry...</span>", "<span class='notice'>You wedge [I] into the crevice separating [S] from [src]'s chassis, and begin to pry...</span>")
 		validbreakout = TRUE