I've been boarding my horse at a facility for the last 6 months, and in those two months the facility owner has turned my horse (gelding) out with her gelding two times. The first time, her gelding bit my horse on his stomach, leaving a long scar. I requested they be separated and everything was fine. She proceeded to turn them out together again this morning, with two mares, and her gelding ran up on my horse and bit him AGAIN on his back. So now he has two large wounds from this horse. I am thinking about moving barns because she now wants to isolate my horse from the mares in a small pasture to prevent this from happening again. I believe she should move HER horse, as I am the one paying for board and it's her horse that's the problem. I just don't want to overreact and move when this has been the only complication thus far. Would you tolerate that kind of response or move?