Not just for a living, but in general as in hobbies, kids, whatever.
I don't have a job right now, I go to the Sacred Heart University here in Puerto Rico, I'm studying education in English for middle school with a minor in psychology. I also love martial arts, have done many of them before but long story short I had surgery on my shoulder about 6 months ago from an injury I took in judo. Now I'm better, not a 100% but a lot better and I'm taking boxing and kickboxing classes. Today I was sparring with this guy who's really good and he gave me what we call a spinning back fist… it wasn't that bad
Here's a .gif of the back fist, keep in mind we were wearing head gear and boxing gloves.