disciplining your horse at a show
I went to a show today with a friend and I looked after a horse she brought, while she showed her other mare. He was rude, pushy, and kept screaming at the other horses. Every time he started stepping on my feet, screaming, swinging his head over mine, circling, etc. I would give him trouble, for example a few sharp fast jerks on the halter, a slap, lunging etc. In no way was I being mean, I was just trying to tell the horse that what he was doing was NOT ok or safe for me or the other horses and people.
It was unbelievable the looks people gave me every time this horse go into trouble. Was it bad what I did?
Is it wrong to discipline a horse like you would at home, at a show?
How do you go about disciplining your horse at a schooling show and gymkhanas?