That's an excellent idea Stan. I've always thought that trailering a horse should be for the comfort and safety of the animals, not for the convenience of the poor schmuck behind me. Horses can't see the bumps coming or turns or anticipate a sudden stop. It's got to be nerve wracking for them.
I had a horse one time that hated trailering! I don't know if he was in a wreck, but he'd been "broken" and trained in Mexico. First we had to work on getting him in. Day after day just get in, get a cookie and back out. Then in and a short ride around the block. Then a short ride to the store. You get my drift. It took a couple months, but he had to regain his confidence and security. Once he got it back, he'd walk into any trailer and go anywhere for me.