Just wanted to say in regards to the Chris Reeve bit, I was at the competition that day, and bless his heart, he was really competiting in a event that he was NOT qualified to do. The way he was holding the reins was not the way you hold them during those types of jumps - which is why he could not fall off the horse. There is a different way you wrap the reins around your hands, so if your horse does not make the jump, you can fall over the side. Still painfull, but you just bruise/break a few ribs, maybe an arm if you land wrong. The way he was holding the reins, he went right over the horses head, and that is why he was injured so badly.