And yet he has bitten you. Maybe you are not the “herd leader” you think you are.
If they did what would they do ? " bite,chase or kick the hell out of them" we have an understanding I tell him to stand in the middle of the field if I am working him, he will until I say he can move . This is the first time he’s Been crosstie and I am not making excuses for him. All I want to know is how to fix the problem or correct it .
I would start by dropping all of the “herd leader” amateur animal psychology, and disallowing him the opportunity to bite. By the time he’s bitten you, it’s too late.
When it is work time that kind of behavior is not acceptable . He only does this with stiff brushes and that first time in the washstall. Doesn’t with soft brushes or hands hence why me and my trainer doesn’t think it’s ulcers . We think he’s just being a piss head
He is sensitive, if it is only stiff brushes. You say you’ve had him for several years. When did the sensitivity to stiff brushes start? And if they cause him discomfort, why use them?
If you proceed from the position “he’s just being a piss head”, you wil more than likely not find the answer to the problem.