We have a cat and a dog. The dog is a stray Yorkshire terrier we took in. That is one disgusting animal, I tell you. We had a litter box for the cat in the bathroom and one day I found it tipped over onto the floor and all of the doo-doo was missing. And I know that the only creature in the vicinity was that sneaky, disgusting dog. I don't think you can stop this. Dogs are just GROSS! yUCK