The QH starts running around like a madman, snorting, biting the Haffie, chasing him in circles, and not letting me get anywhere near them. After about 15 minutes, I caught a lucky break with the Haffie blocking the QH so he couldn't see me approach, was able to get leads on both and get them back to the barn without further issue.
I had a horse owner friend come over and take a look at them-I had turned them out separately, so the QH was in pasture, the Haffie in the barn. We did some exercises, changed stalls, etc. She said she would still put them out together, but I am worried that this will happen again, and the less dominant Haffie is going to get hurt, or run through a fence because he has no choice.
Should I turn them out separately until we can split the pasture, or take a chance and see what happens?