Dmitri hasn't had that box on its side for a while now, but he has an upside-down box with a door he likes to throw around and a little house in which he likes to hide. In his first year or two here, he used to go in and out of that box all the time, it'd give him some privacy when he still shared space with Otis. The top flap was even folded down like an awning or a little roof. Buns like to be able to regulate interpersonal distance a lot. Sometimes they want closeness, sometimes they want space - what they really want is to be able to decide when they want what.