In one of the groups I was in once there was a person who had previously worked as a physio and I saw the working on someone else and scurried over asking if they would teach me, and they quite happily demonstrated and explained what they were doing. It looked a lot more crazy than even my most intense when I'm working XD

My dad had a knee recon and he made physio look easy. We were telling him to be careful and not overdo it and he was all yep he's going for walks down the street/around the block/still wanting to play with the grandkids x_x He's also the type that doesn't really complain much about anything though, a trait I wish I'd inherited XD