Our RB kitty Kuhio was definitely hubby's doctor. He had to have his left hip replaced back in 1995. When we got him home from the hospital and in bed, Kuhio laid down against that hip and purred non-stop until he was up and around again. In 2000, his right hip needed work. Kuhio switched to that side and purred until it was healed also. She was also known to be a very good heating pad when I was feeling bad during "that time of the month".