Gail, I don't think you're going to keep Pooka from throwing books off the shelf. My little fur-covered bulldozers could probably attest to that fact, since I've done everything humanly possible to stop them! ("human" ... maybe that's the problem ... lol) Seriously, though - try a covered litterbox. I had to put one in the corner next to the hutch where I keep my spools of thread and yarn. (no needles - they're secure somewhere else) Gus, Minnie, and Harley were forever knocking yarn and thread into the litterbox. When I moved the box, they just pooped on the floor, so I put a covered box there. It worked for them, and I don't have poopy yarn anymore. It might work for you and Pooka! Sincerely - Jenny and the Fuzzbutts Fifteen [Posted in FML issue 4404]