Also fixes paperbin without hands

Whee.

code/modules/paperwork/paperbin.dm

@@ -26,6 +26,13 @@
 
 
 /obj/item/weapon/paper_bin/attack_hand(mob/user as mob)
+	if (hasorgans(user))
+		var/datum/organ/external/temp = user:organs_by_name["r_hand"]
+		if (user.hand)
+			temp = user:organs_by_name["l_hand"]
+		if(temp && !temp.is_usable())
+			user << "<span class='notice'>You try to move your [temp.display_name], but cannot!"
+			return
 	if(amount >= 1)
 		amount--
 		if(amount==0)