Bill is actually much too big for a copy-paper box; he's a large, tall tomcat weighing in at about 9 kilos (20 pounds, more or less), and not much of it is fat. He requires half a queen-sized bed, or perhaps a La-Z-Boy chair, all to himself, and when he sits on your lap you are occupied like France in 1943.

Black cat in melodeon case ... Hmmm. At least Bill is easy to see.