Mare started kicking like crazy in trailer
I have a mare (had her for about a year), she was OK initially but then started kicking in the trailer one day when it was hot and we were stuck in traffic. Didn't do it for a while, then started again more recently. She seems to do it more when she is hot, or by herself. But this morning (relatively cool morning) loaded her first to go to a show (into 3 horse slant load, first stall has solid divider, wanted her in that one so if she does start kicking she doesn't kick the other horse I am taking), and when I went to get the other horse to load, she started kicking violently then jumped out of the trailer over the breast bar (there is a small escape door to the first stall which I had left open to keep her happy, ha!, while I fetched the other horse). Almost gave me a heart attack. She is kind of OK, a bit scraped up on her hip, withers and face, but seems sound etc. Not sure what on earth to do now. She had her ovaries out last April (before I got her), but started going in heat this Spring, which can apparently happen amazingly enough, so we started giving her Regumate which seemed to help at first, but she is back to being mare-ish (which I think is precipitating trailer behavior). Seems like a very complicated problem, have no idea what ideas anyone might have, but figured no harm in asking!