i am having this issue with rocky too! i didn't realize why his closet that i faux fur lined for his box and bed smelled dispite my constant cleaning. well it was the walls! yikes! i had to pull out the insulation and faux fur and start over. what a mess. but he goes there so well i wouldn't think of changing him. it comes in handy even at hotel that he will go on the paper. so i am on my way to get a rubermaid to cut to fit. great idea! thanks michelle