I am hearing all these ideas on fixing the problem but no ideas on why the problem is occuring to start with. If the horse is fine with other horses other then in a trailer this would send a flag up ( to me anyways ) that maybe the horse suffers from anxiety when being trailered and its only reaction is to be aggressive to what ever is near them. Horses can also suffer from being clostraphobic ( a sense of being everly crowded ) hense the reason he may strike out or bite his trailer pals. I do not think a chain is the answer to this issue at all. I certainly wouldnt place a chain over a horses nose and yank while in the trailer with them. The last thing you want is a horse freaking out and then getting the others worked up and you got no where to go. Especially if the horse is suffering from anxiety or the like. Find the cause pick away at each. If it is just a bullying thing ( being stubborn ) I would go with the kicking chains before I would go with a chain over the nose. And I would never ship a horse is a nylon halter EVER.
Im not saying I would use them but would before a chain over the nose. I do however know of a stud that ships with kicking chains and does fine actually alot better then kicking out at anything that goes near him when shipping. But as for me I prefer to find out the reason why they are doing what they are doing to start with and most cases its stress related.
I have always learned find the cause then fix the problem. Can't fix the leak if you can't find the hole. Right. Lol
I am not trying to pick on you. I just know that avoidance of a problem oftentimes ends up with the horse escalating the behavior. It can go from biting (which tying short would help) to kicking to tearing a trailer apart to crippling themselves. I've just seen it happen too many times and would prefer to actually change the behavior.
Horses do not need 'good' reasons for anything they do. Sometimes they have a reason -- like an incident years ago and an unwanted behavior was the horse's answer to that reason. From that day on, they are 'creatures of habit' and the only reason they needed was that they did it before. This is, by far and away, the main 'reason' most horses do most things they do that make little sense to us.
We also have to understand the difference between a 'reason' and an 'excuse'. Even if horses have a reason, we should not let it become an excuse.
Their 'reasoning' and their 'cause and effect' has to be kept pretty basic and simple. Most people waaay 'over-think' what a horse is thinking.
I have had horses that were bitten by one other horse one time under saddle and I had to go through a whole lot of this type of 'behavior modification' because from that day on, they fired (kicked) at any horse approaching them from the rear. Many times people do not even know or remember the first incident that got a bad habit started, but you can bet the horse does. You just have to do something to 'break the cycle'.
No, I would not tell your frail 79 year old mother to do this. I would expect you, or some other able bodied person, to go help her and 'set the horse up' and 'fix' the problem for her. I am very crippled and I still fix these kinds of problems for people that come here with a horse. Then, I make sure they know how to safely do it themselves. The last thing your elderly mother needs is to be hauling this horse and have it have a 'come apart' on the road.
You simply put one regular lead-rope on a nylon halter. You put on a second lead-rope with a chain on the horse. Throw that one over his back; load the horse; treat him just like you ordinarily would; tie him; then reach in the trailer and take hold of the stud rope; hold it outside of the trailer; and wait for the horse to misbehave. When he does, you jerk his chain. I would load 2 or 3 different horses behind him. I would make sure he know why he was punished. This is a very quick and very simple 'cause and effect' that they all understand.
I have ridden in the back of a puck-up on on a flatbed several times holding a rope attached to a horse that we knew was going to start kicking and fighting a trailer or his neighbor. It has always changed a horse's behavior.
I'm not going to get in the trailer either and I ain't in my 70's. There isn't enough room in the 2 horse to do that anyway.
I don't think the horse has anxiety over being in the trailer. He trailers well enough alone, and isn't a problem to load (steps right in). He gets along with other horses in a pasture because they've already worked out the pecking order, and under saddle because he's been taught not to react when being rode. He's naturally a dominant horse, and I think he's just asserting himself. He doesn't appear to be reacting out of fear.
I've see Clinton Anderson's trailer loading clinic (my friend even emailed him & Buck Brannaman about this). I have used the same technique before with good results. Problem is you don't really have room to move the horses feet, and by the time you get him out of the trailer, you've lost the moment.
We want to fix this before anyone or anything gets hurt. Chase the trouble so to speak. If it had been my sister's old paint in with him, she would have hurt herself to get away from him. Her flight instinct was that strong.
Thank you guys for all your ideas. I really appreciate it. We were just drawing a blank on this one.