Janitor ERT

Because.

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

@@ -48,4 +48,4 @@
 /obj/effect/attackby(obj/item/I, mob/user)
 	if(istype(I, /obj/item/weapon/mop) || istype(I, /obj/item/weapon/soap))
 		return
-	..()
+	..()

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

@@ -0,0 +1,59 @@
+/obj/item/weapon/mop_deploy
+	name = "mop"
+	desc = "Deployable mop."
+	icon_state = "mop"
+	force = 3
+	anchored = 1    // Never spawned outside of inventory, should be fine.
+	throwforce = 1  //Throwing or dropping the item deletes it.
+	throw_speed = 1
+	throw_range = 1
+	w_class = 4.0//So you can't hide it in your pocket or some such.
+	attack_verb = list("mopped", "bashed", "bludgeoned", "whacked")
+	var/mob/living/creator
+
+
+/obj/item/weapon/mop_deploy/New()
+	create_reagents(100)
+	processing_objects |= src
+
+/obj/item/weapon/mop_deploy/afterattack(atom/A, mob/user, proximity)
+	if(!proximity) return
+	if(istype(A, /turf) || istype(A, /obj/effect/decal/cleanable) || istype(A, /obj/effect/overlay) || istype(A, /obj/effect/rune))
+		user.visible_message("<span class='warning'>[user] begins to clean \the [get_turf(A)].</span>")
+
+		if(do_after(user, 40))
+			var/turf/T = get_turf(A)
+			if(T)
+				T.clean(src)
+			user << "<span class='notice'>You have finished mopping!</span>"
+
+/obj/effect/attackby(obj/item/I, mob/user)
+	if(istype(I, /obj/item/weapon/mop_deploy) || istype(I, /obj/item/weapon/soap))
+		return
+	..()
+
+/obj/item/weapon/mop_deploy/Del()
+	processing_objects -= src
+	..()
+
+/obj/item/weapon/mop_deploy/attack_self(mob/user as mob)
+	user.drop_from_inventory(src)
+	spawn(1) if(src) del(src)
+
+/obj/item/weapon/mop_deploy/dropped()
+	spawn(1) if(src) del(src)
+
+/obj/item/weapon/mop_deploy/process()
+	if(!creator || loc != creator || (creator.l_hand != src && creator.r_hand != src))
+		// Tidy up a bit.
+		if(istype(loc,/mob/living))
+			var/mob/living/carbon/human/host = loc
+			if(istype(host))
+				for(var/obj/item/organ/external/organ in host.organs)
+					for(var/obj/item/O in organ.implants)
+						if(O == src)
+							organ.implants -= src
+			host.pinned -= src
+			host.embedded -= src
+			host.drop_from_inventory(src)
+		spawn(1) if(src) del(src)