Fido is not a complicated cat. He has few goals in life. One is to sleep in cello cases.
Usually I keep mine in the closet if the cello isn't in transit, but today I left it out. Because I wouldn't let him scratch at it to get inside, he settled for on top. Of course he started with just front paws, and since I let him get away with that he quietly rearranged himself while I was busy teaching.
A regular part of lessons is shooing him away from students' cases.
(A cat named Fido? Son number 2's cat. Nuff said.)