Parrot does the same thing to me too. :p
Btw, a related question... two of my cats have a scratching problem, I guess you'd call it. Whenever they use the litter box, they scratch as if they're going to cover it, but they're way off the mark. They'll scratch at the floor or the walls nearby, but never in the litter itself. And they scratch forever! 10 minutes at a time; it drives me crazy having to listen to it. Why are they doing this?