Great idea Kato! Bet it works real good.
We've got a young feller who is quiter the horse trainer, in our country. He talks of just spending time with your horse. On his back or any other, as long as it's constructive. I think the same principle applies.
He also says to rerward your horse whenever he comes to you. And no not with apples, carrots or oats, but with some scratchin' or pettin. Makes them like you better and makes a partner instead of a slave. As he put it, "If you had a friend come up and want to visit with you and you just turned and walked away, how do you suppose he'd react after several attempts on his part?"