We bought a new mare, Lady about a month ago, just turned 16 yr. old TB, OTTB, but hasn't raced since she was about 4. She was advertised as a trail horse, when we tried her out the owner got on her, I rode her, my daughter rode her and since we've had her, we've ridden her in our arena, taken her to a Pony Club lesson and taken her on a trail ride and she's been fine. She tends to be a little antsy at the beginning of every ride, but just a little jigging/jogging and then settles down w/in 5 minutes.
Sunday, my husband and I were going to go for a ride, his first on her, got outside our gate and she was a little worked up so I had to hold her for him to get on. My daughter was trying to get some pictures of us and Lady didn't want to hold still and started to move around and back up. My husband tried to turn her around to get her next to my horse and suddenly she started scooting backwards quickly across our dirt road. She went so fast, her hind legs slid under her, she hit the edge of the road, sat down and her body went up and over, rolling back on him and then over onto her side. She took off down the road to our horse gate and galloped back and forth, very agitated, wanting to get back in.
My husband spent 2 days in the hospital w/ a concussion, has a very bruised thigh......
Not sure why she suddenly flew backwards and not sure where we go from here because I don't believe any horse is worth your life.....
What would be your next step with her?