To my knowledge, as I now live 4 hours away from there, he no longer owns horses according to a friend of mine who knew his son. I tried to get someone to go out and check into it, but I don't think anyone ever did.
Another one someone told me their dad did to them when teaching them and the horse to barrel race.
He would wrap the barrels in barb wire, this way she and the horse learned to turn quick around them, but not to run into them or knock them over, otherwise they would be gouged at by the barb wire! She said she quickly got out of horses thanks to her dads ingenious ways.