My horse, when I first got him, did not load well. The first show I took him to, he got on reasonably well with three people to help, but when it was time to go home… no way! I was highly embarassed, to say the least. (Well, yes, we did eventually get him on.)
So here’s what I did, and have done ever since. I don’t like to have to rely on anyone else to help since, as someone above said, sometimes there isn’t anyone else around!
I “prep” the trailer with hay, shavings, etc. and then take a plain (NO CHAINS!) longe line and place the clip (the part that will attach to the halter) on the ramp (if no ramp, then at the mouth of the step-up). I run the rest of the line up through the trailer, and out through the feed door (or escape door is there’s no feed door), back to the back of the trailer, where I coil it neatly on the fender and place a dressage whip where I can reach it w/o bending over or taking my eye off the horse.
Go get horsey. Lead him up to back of trailer. Attach longe line. Remove lead line. Pick up whip.
Use the longe line to keep the horse’s head going where you want the rest of the body to follow. Stand TO THE SIDE of the horse and take most of the slack out, but leave enough so they don’t feel pressured. They can look around, sniff, check it out, while standing outside. Eventually they start to think of leaving.
At that point, take the rest of the slack out and redirect their noses. My technique (works for you but you know your horse best; it helps if they respect the whip!) is to tap the horse gently but rhythmically just above the hocks until they take a step forward. Then stop tapping and praise. Give it about 15 seconds, then ask for another step.
If all goes well they’ll eventually get in the trailer. I let them get right back out again if they want to… they seem to feel safer about getting back in if they know they can exit when they get uncomfortable with the situation.
The first few times I tried this w/ my horse, he got in and out a half-dozen times before he finally went in and stood there. Keeipng the longe line reasonably taut but not pulling, I then put the butt bar up and closed the door, THEN went around and removed the longe line and attached the trailer tie. I just stood and praised and hand fed treats.
Another day, we took a short ride… you know the “desensitization” drill.
Today, I still use this technique, and I still have the whip in hand, but I no longer have to touch him with it. He goes right in with little or no hesitation, and stays there. Occasionally, he’ll walk right in without my having to even tug gently on the longe line.
I suppose that if I keep him and this particular trailer long enough, we might get to the point where I can just through the leadrope over his neck and pat him on the fanny and he’ll load himself…
but I’m satisfied with things as they are. He hasn’t made an issue of loading in the last 4 years…