So, Rey has been tearing the life out of his foam rock wall background. It's kind of funny, because when I come home he always has those tiny little foam balls all over his head and back; and I swear he likes the squeeky noise it makes because he just looks evil when he's scratching and making noise lol. Anyways, I was wondering if I should just remove the foam wall? I think it's possible it could be harmful if he eats it, and I really don't know for sure whether he's eating it or not. Some days I come home and the floor is COVERED with the little foam balls, and he looks at me like "what? I didn't do it!" It doesn't even look like rocks anymore. So, the question is, should I take it out?