.Work him if he doesn't go in-He is a Morgan/QH and has incredible endurance. Every time he wouldn't go in and I ran him, I could just hear him saying "I could do this all day." Honestly, I started getting side pains before he got the message.
.Circle him- This went the same as the above strategy. I got dizzy and he still refused to move.
.Get out the whip-This just made him frustrated. Each horse has a different personality. With my mare, if I whip her, she straightens up and thinks, "Oop, time to learn, I better listen!" But with him, he says, "What is going on? Why is she using that!? I need to get away from that! I'll run to the barn! Or away from the gate!" He looses any sense of focus he had before and after I pull out the whip, there is no hope of him learning anything the rest of the day. No, I do not hurt my horses with the whip, but he was abused with a whip by somebody else, so that might be part of the problem.
.Standing patiently and inching forward- Turns out horses can stand for HOURS! I got bored, and it takes hours to take it slowly.
I have lunged him through and around the gate. Take away the barrels and he if fine! But if there are three barrels on the other side of that gate, good luck getting him through! Any help is awesome! Thanks!