anchor.diff:  		/obj/effect/decal/cleanable/oil,
   		/obj/effect/decal/cleanable/vomit,
   		/obj/effect/decal/cleanable/robot_debris,
  -		/obj/effect/decal/cleanable/crayon,
   		/obj/effect/decal/cleanable/molten_object,
   		/obj/effect/decal/cleanable/food/tomato_smudge,
   		/obj/effect/decal/cleanable/food/egg_smudge,
  
positive.code: 	if(pests)
  		target_types += /mob/living/simple_animal/cockroach
  		target_types += /mob/living/simple_animal/mouse
  
  	if(trash)
  		target_types += /obj/item/trash
  
negative.code: 	var/blood = 1
  	var/trash = 0
  	var/pests = 0
  	var/drawn = 0
  
  	var/list/target_types
  	var/obj/effect/decal/cleanable/target
  