I have 2 horses a gelding and a mare. We just brought the gelding home last Sunday. I was riding my mare in the pasture and when we went behind some trees the gelding freaked out and came galloping towards us making quite the commotion. Once he got to my mare he was fine. Now she didn't react at all and just kept doing her thing. I want to take her out on the road where we normally ride but I am worried he will totally freak and try to come through the fence. I am a beginner so not a lot of experience. Any suggestions for me? I will talk to my trainer when I go on Monday. The gelding is 17 he is a BIG horse about 16hh and he is broke. I ride him in the pasture also and he is fine. My mare is 15 and she is smaller at about 14hh.