I think the sad thing here is this guy needs far more teaching himself befor he tries to teach his horse anything. It's these people who get their hands on natural horsemanship info and end up giving the idea a bad name.
My opinion being said, this guy really needs lessons and experience. It's too bad he didn't get a nice mellow horse to start with, one who would be patient as he learns.
Hopefully getting him to join this forum would help. There are alot of people here with a lot of knowledge and experience. It might help keep him out of the hospital.
Good luck to you in doing what you can...when asked. It would be hard to be in your position.
If you ever find yourself in a fair fight, it's because your tactics suck. ~ Marine 1SGT J. Reifinger