Last week we were riding the road and he spooked and threw me but stayed by my side til I got back on him. This time, we were just quietly walking on the road and out of nowhere he started bucking and rearing. I held on for awhile but finally flew off. My girlfriends tell me he kept doing the same thing even after I was off. I don't know what got into him. The rest of the horses were fine, no spook. I just can't figure it out if it's just a fluke that it happened twice in a row or not a coincedence at all. What do you think?