The other day my 10 year old and I were riding our horses on a trail near one of the pastures for other horses. There was a line of trees between the pasture and the trail. The horses in the pasture took off running because they were getting fed hay and that caused my daughter's horse to take off running. Because my daughter is only 10, she wasn"t able to get her to stop (lack of strength I think). Her horse ran by mine and mine took off after her. We both jumped off as that was the safest thing to do at the time and place. I am wondering if this a normal response from a horse that is trail riding - I don't think they should run just because other horses in a pasture do so. Any feedback would help! What is the best way to train a horse not to respond by taking off in that situation?