Sorry, but I disagree with the people here who say that kicking a horse is out of line. That is exactly what they do to each other in the pasture, so why do any differently to them when establishing dominance. Do I agree with the guy that is constantly kicking horses? No, but I also don't know the whole story either. When I got my mare she wanted to literally run me over, but after turning around on her and kicking her in the chest a couple times, she respects my space very well now. Natural horsemanship does not always mean natural = nice! Horses aren't nice to each other, they are constantly trying to get dominance. I hate how so many people act like natural horsemanship means that you need to bond with your horse on some friends level. If you're nice to them, they'll be nice to you or something. That isn't how it works sorry to say. Natural horsemanship is just a way of asking, telling, and then demanding that they listen to you.