Adds caching to dummy objects, seems to work great.

code/modules/recycling/disposal.dm

@@ -502,22 +502,6 @@
 			H.vent_gas(loc)
 			del(H)
 
-	CanPass(atom/movable/mover, turf/target, height=0, air_group=0)
-		if (istype(mover,/obj/item) && mover.throwing)
-			var/obj/item/I = mover
-			if(istype(I, /obj/item/weapon/dummy) || istype(I, /obj/item/projectile))
-				return
-			if(prob(75))
-				I.loc = src
-				for(var/mob/M in viewers(src))
-					M.show_message("\the [I] lands in \the [src].", 3)
-			else
-				for(var/mob/M in viewers(src))
-					M.show_message("\the [I] bounces off of \the [src]'s rim!", 3)
-			return 0
-		else
-			return ..()
-
 // virtual disposal object
 // travels through pipes in lieu of actual items
 // contents will be items flushed by the disposal