Love the cat house one! I could see our Mindy doing that to Mork. She is the boss! Even though she has always been the smallest, she's been the boss since the 2 of them and their sister got big enough to start playing and sorting out the pecking order. Whenever I change the litter, there is always a race to see who gets to use the new litter first. Mindy wins 8 out of 10 times, though I have seen Mork climb in the box (covered) with her.