One of my friends has a cat, Gracie, that refuses to use her box again after making a "stinky" until it's been scooped. Unfortunately, my friend and her daughters are at work and school all day. Fortunately, her mother lives nearby and is able to stop by during the day just to clean Gracie's box. Unfortunately, one time the whole family was out of town for the day. Fortunately, Gracie did not make a pile or a puddle elsewhere in the house. Unfortunately, Gracie was apparently ticked off at not being able to use her box and had smeared her "stinky" all over the wall and floor around her litter box. Fortunately, Gracie is still alive today! True story!