I recently changed riding schools and had my second lesson there today when the horse bolted with me! I am used to my previous lesson horse spooking occasionally but that consisted of a few sideways steps and was not scary at all. This however was terrifying! We were in trot at one end of the arena when suddenly & for no obvious reason (he must have seen/heard something but there was no loud noise or anything) he turned abruptly and galloped down the length of the arena. It was definitely a gallop as the instructor said it was! I managed to stay on but I am not an experienced rider as I only started taking lessons earlier this year so it was more luck than skill! I don't know if this behaviour was unusual as I was too shaken to ask. My dilemma now is should I go back to riding this horse?