I had a kitty, Cosmo, who did like Mimi. I called him the "potty police" because he would go in and scratch and dig, scratch and dig. He did this even if he hadn't just used the box. He would cover up his and all the other cat's deposits. Then he would go in later and do it again. I had a very small bathroom and it was impossible to have the litter box far enough away from the toilet paper to prevent him from scratching the whole roll into it. We had to be careful not to leave any towels or clothes on the floor or even hanging within his reach or he would scratch them right into the box!