Merge pull request #8846 from PsiOmegaDelta/CantClickMeDontClickMe

Makes objects without moues opacity not appear via alt-click.

code/game/objects/items/weapons/clown_items.dm

@@ -29,6 +29,10 @@
 	else if(istype(target,/obj/effect/decal/cleanable))
 		user << "<span class='notice'>You scrub \the [target.name] out.</span>"
 		del(target)
+	else if(istype(target,/turf))
+		user << "<span class='notice'>You scrub \the [target.name] clean.</span>"
+		var/turf/T = target
+		T.clean()
 	else
 		user << "<span class='notice'>You clean \the [target.name].</span>"
 		target.clean_blood()