I have a min donkey and cow ponies. The donkey is WAAAY harder to train than a horse! He is awesome at halter breakin colts! Throw a good halter on him, throw a loop around the colts neck, thats tied to the halter and watch them go... They damn sure cant drag him and after about 10 min the colts are ready to have a halter put on them. Tie them up short and the lil donkey leads the way! half an hour later you can lead the colts yourself.. I might try packin on him but we have planty of good cow ponies that are pretty bomb proof..