Jeff's building a "shit house" for the cats. It's essentially a wooden box with a hinged top and a hole cut out on the front for them to enter. The lidded litter box fits inside. The purpose is to keep Filo out of it so perhaps we can leave him out of his crate when we're not home. (We'll have to test him, of course.) Anyway, the process has been sort of amusing. We put the litter box on top of the box Sunday night, because he still needed to cut the opening. They were slightly confused, but eventually figured it out. Baby and Thea would sit on top of the box next to the litter box. Last night Jeff removed the front so he could outline and cut the entry hole. Thea had to get in there and inspect the construction. We then put the litter box inside, so it's positioned like it was before the shit house was built. Jeff even measured Buzz's standing height and belly diameter to make sure the hole was big enough, but as small as possible to deter Filo's shit snacking. His belly is about 7" wide, and he's about 11" tall (not including tail). Let's just hope he doesn't expand any further.