Another suggestion is to TRAIN the dog not to go near the kitty litter. When you aren't at home, make it so that the dog is contained in another room/crate etc. When you are at home be very consistent and every time he goes near it, say "NO" or "Uh uh" very firmly. We had a problem with malone & the kitty litter, and we have trained him so that he doesn't go near the litter box. Hope this helps!!