My gelding was crazy, and then I figured out it was the oats I was giving him. If you're wondering what to do with his energy when you ride, get his mind to work. Trot poles, figure eights, serpentine's, lateral work, cause the horse to use his/her mind and think about what their doing with their feet. Some people try to lunge out the energy before the ride, but I've learned to use that energy. You can get some amazing work done. Don't try to canter and canter and canter until their exhausted. That creates a horse who doesn't want to be ridden.