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— At one point in my life I exercised racehorses, and when you're on the backs of these beautiful animals that weigh roughly 1,200 pounds, things can happen very quickly...especially when you're traveling in a herd at nearly 40 mph. There isn't anything much more terrifying than the moment that you realize you're going to end up underneath a horse. I just cringe when I look at this. Hopefully all of the horses and riders came out of this terrible crash alright.