You might want to start out with an older horse. The younger ones tend to be a bit fiesty. Also if you get a bigger one you could ride it. Just a thought. We know of some older trail horses for sale, inexpensive and dead broke if anyone is looking.
And BTW learn the meaning of each of these:
Buck
Rear
Kick
As you will learn the real meaning of each, first hand!
You might want to start out with an older horse. The He needs to start out with drug and alcohol detox, then some counseling, then a job, THEN maybe a horse.