Because they started doing this (I think it was when we got a new litter box they didn’t like), I started cleaning their litter boxes (we set up their old one as well) pretty much every day. The area around the boxes is clean, and there’s nothing I can see that is putting them off it.
We’ve had them on a diet food for awhile now, which they don’t really like. Our cats tend to be rather vindictive, so it’s possible they’re expressing their displeasure in the food, or lack thereof.
I just have no idea how to get them to stop it. If anyone has suggestions I’d be grateful. That, and how to get the smell of cat pee out of things.
*sigh*, and I was looking forward to sleeping in this morning...