loneplainsman wrote:
I know for me, if this happens, I ask him to halt and back up immediately after jumping. It seems to help. But I just do a couple of jumps here and there for fun... so I have no idea if this is actually done irl (image).

I'm no expert, but my previous trainer did a little work with my mare teaching her to jump (at all, from scratch), and she from the start was really overexcited and head in the air. So she would walk a big circle (30 meters, with the crossrail being part of the circle), trot three steps, jump the cross rail, trot two steps, return to walk, walk the circle, repeat. If my mare wasn't calm and relaxed in the walk, she'd walk around the jump and do another circle. And just do it a dozen times every day, so it became less exciting, more like just another thing to do. After a while my mare started getting calmer about the whole thing. I ended up moving and not following through on that start, but it seemed to be helpful beginning.