Improves support for rags as reagent containers

Rags now hold just under half a glass worth of reagents.
Fixes rags wiping down a mob while smothering them.
Rags can now be wrung out over a container or the floor, emptying it's
contents.
When wiping down stuff, a small amount of the rag's contents are
splashed onto the atom.

code/game/objects/structures/watercloset.dm

@@ -395,7 +395,7 @@
 	if (istype(RG) && RG.is_open_container())
 		RG.reagents.add_reagent("water", min(RG.volume - RG.reagents.total_volume, RG.amount_per_transfer_from_this))
 		user.visible_message("<span class='notice'>[user] fills \the [RG] using \the [src].</span>","<span class='notice'>You fill \the [RG] using \the [src].</span>")
-		return
+		return 1
 
 	else if (istype(O, /obj/item/weapon/melee/baton))
 		var/obj/item/weapon/melee/baton/B = O
@@ -413,7 +413,7 @@
 				user.visible_message( \
 					"<span class='danger'>[user] was stunned by \his wet [O]!</span>", \
 					"<span class='userdanger'>[user] was stunned by \his wet [O]!</span>")
-				return
+				return 1
 	// Short of a rewrite, this is necessary to stop monkeycubes being washed.
 	else if(istype(O, /obj/item/weapon/reagent_containers/food/snacks/monkeycube))
 		return