I was asking for a trot and he trotted a few steps and took off into a canter. At first I just let him go, he hasn't been rode in about a week due to my work and the weathers time for spunk! Well I asked for a trot, then a walk he did fine. So I walked a lap around the arena and asked for the trot again. He bobbed his head and quickened his pace like he was going into the canter, but didn't; all of a sudden he took off again. I sat deep into my saddle and pulled back and he just fought the bit! This happened each time I asked for a trot! I think it might have been a mistake just to let him take off into a canter because now he doesn't want to stop! When I tried to slow him down he gave a buck, not big but he wanted to take off!
Want can I do to break this habit if it becomes an everytime thing!