It's also possible he was one of those horses that was taught to be wild on the lunge. I can't tell you how many times I've seen people just chase their horses around while lunging (or in a round pen) just to make them tired so they will "behave". It leads to that kind of behavior because they think that's what they are supposed to do after a while. If I'm retraining one that has that habit, as soon as they start acting up, I make them yield their hindquarters and shut down the behavior ASAP. Then I ask them to go out on the lunge circle again. It doesn't matter if it takes all day, until they lunge properly and with manners, we will keep starting/yielding/reversing/restarting until it clicks. It's easier to shut down the behavior in a round pen because then you don't accidentally send the wrong signals down the rope while you are trying to correct the behavior.
"Keep a leg on each side and your mind in the middle"