I have two litter boxes in the room for Byron, one in his ferret penthouse and one in a corner on the room, for when he is out loose. He uses both of them, but occassionally goes behind the door. I constantly clean the area and try to get rid of the smell, so he doesn't associate the door with a litter box. Is there something I could buy to put down, like a powder or spray, that would tell him to stay clear and that this is not a bathroom? Any suggestions? -Dave [Posted in FML issue 1480]