horse gymnastics: VERY dangerous

Have you ever heard of, "Horse gymnastics?" People have to be very well trained to do this. They do gymnastics on horse back, sometimes while cantering or trotting fast. They have to learn how to be on a team. First, a man or woman runs with the horse. Then they grab onto the handles on the horse's saddle and pull themselves on. Then another person gets on, the people do twists, turns, jumps, and even flips on the moving horse. Then when they're done, they jump off. If a person falls off, or does something wrong, it will lose points for the team. It's very beautiful to watch!