On the alternate side, we had a gelding who his owner deemed rude, disrespectful and stubborn. My trainer worked through the problem with the horse, but what started to help the very most WAS the chiro work. His back was so tight, it was hard for him to do what he was told. Only my trainer could get him happy because she would always loosen his back undersaddle, before starting any work. So maybe what I am getting at here is a lack of knowledge will also badly affect your horse, maybe not stupidity, but the owner was simply not a good enough rider to help the horse. Nobody's fault, but the chiro helped them work though it.