If your cat really trusts you, you can do things with him no stranger would be allowed to do. One pas time that a few coddled cats will endure (and even enjoy) is the bag drag, which needs to be done on either wood or linoleum: have the cat lie in a bag (either paper or cloth) while you spin the bag in a circle, the cat’s belly touching the floor. The majority of cats probably wouldn’t tolerate it, but a few seem to like the gentle friction generated by the spinning.