My mother had a sleep sofa. The ferrets were able to get inside the hollow arms. It became their favorite bathroom. We had no clue, although I did wonder why there was dry poo around the legs when I was sure no one could get their butt there. The smell I couldn't find the source of should have been a tip off, but I didn't figure it out until I flipped the sofa over and a lot of dry poo fell out of the arms and I could see the pee stains that soaked through. Point of lesson? Sleeper sofas are luxury litter boxes. [Posted in FML 5866]