You need to get after him. To put it simply. He has become so attached to the mare that he sounds like he has gotten dangerous in a way that he pays no mind to you on the ground what so ever. When you are on the ground and he does this, swing the tail end of your rope at his haunches, and raise some hell until he turns, faces you, and says, "Whoa, sorry."
You won't be doing this in an energy like you are punishing him, just a quick, energetic correction.
You need to make sure that you do not put yourself into a position where he can kick you. So even though you are firing energy at his hind end, don't position yourself too far near his hind end, stay up near his barrel. You need to do something loud enough to get his attention. Anytime you see that cow kicking coming on, send him sideways, backwards, anything to let him know there is a consequence to him not paying attention to you on the ground. Even though he may not be aiming at you, you need to get ahold of his behavior before it escalates into something you cannot handle. Be clear that if he panicks about the mare, you do something to make him want to pay attention to you more than the mare. Any time he is quiet and making an effort to listen to you, reward him by doing something really peaceful, or something you knjow he can do well.
You are right to disengage his hindquarters, but when you are riding will it be most effective. The moment he starts his antics, move his hind end left to right, right to left, until you feel him settle and be with you. If backing up seems too easy for him, you need to do something a little more challenging, like moving his hind end from side to side. You also need to keep in mind that while doing this, you need to have a little bit of forward in there as well. Try not to allow him to sucker you into him not moving. Move his butt to one side, take a step forward, then the other.
Does he get turn out? Any possible chance that mare can be moved to a different stall?
In riding, a horse's energy is like a river- guided by the banks but not stopped by them.
Last edited by koomy56; 03-17-2009 at 06:46 PM.