I guess I could add post-surgery walking. Well, one time in particular. God, it was harsh. During one of the physical theraphy sessions, my scar started bleeding and was about to gash. I had to go into surgery again to open it, drain it, and then the process restarted.
I might add that having 40 huge staples taken out isn't too fun. The upside of all the surgery I've had is that needles and blood have no effect on me.