Dd has had her horse for almost 4 years. He's a big competition horse but very polite and easy. Can get strong and boisterous occasionally but nothing bad. Dd has started eventing him and he's been great. She hacked him out last night as normal. She cantered along a bridle path and he got stronger and stronger faster and faster. She couldn't stop him and he ran through a line of bollards onto a road (bridleway has been unceremoniously divided by a new road 
) , a car had to swerve to avoid them. She eventually managed to turn him into a closed gate and jump off. She rang me and I drove to where she was and led him home. She was completely petrified, had a panic attack. Horse is fine apart from a split mouth which MAY have been the cause (new bit). Also dh bought the wrong chaff with alfalfa in a few weeks ago which we thought he might be sensitive to, but fed it anyway.
She's supposed to be competing this weekend. Dh wants to get rid of horse!
Wwyd?