A few years ago I broke my ankle in 2 places and ended up in a cam walker. Groucho constantly rubbed up against it and often just touched it with his little paw. He followed me everywhere and never left me. When resting on the sofa, Groucho would lay down on my knees and purr while touching it with his paws. With Groucho checking on it, the pain eased up considerably. They sure do know how to make us feel better.