First of all, get a game plan in place with the instructors. Your instructors are being doormats. I’m an instructor. If a kid mouths off to me, the lesson is over.
I start out with a warning:
“Sarah, you are being disrespectful. I am interested in your opinion, and I’d like to hear it, but people do not speak that way to each other on this property”.
The next time it happens (usually by that time I’ve talked to the parents about my next step) I say: “we’ve talked about this before. You are the student and I am the teacher. That means you do what I tell you to do and you do it politely. If you have a question about why I’d like you to do something a certain way, I’ll do my best to answer it…if you cannot work in that framework, your lesson is over and you can go home. You are welcome to come back with a different demeanor for your next lesson”.
Before I threaten to ditch the kid out of the lesson I run it by the parent first. Every time so far, the parents have given me the thumbs up to end the lesson of the kid does not shape up. A few times the parents, who had abdicated their role as an authority figure, were relieved to have some one else be the heavy. I told them that for that day, that the money they spent on the riding lesson was paying for a life lesson and they agreed.
I’ve also had to intervene with a girl who mouthed off to her mom in the barn. I asked her if they had EVER heard anyone speak to anyone or to a horse that way on the property before. She had to say “no”. I told her that that way of communicating is “not done here”. The mom was relived, and if she had not been, I would be okay with losing that client.
I’ve only had to have the kid dismount and leave the arena twice in twentyfive years. Doing it on the spot and dismissing them from the class is shocking and very effective. They hand me the horse and must walk out of the arena alone. No untacking, no hanging out. One of those times, the girl walked out into the aisle, and reappeared in the arena a few minutes later and very nicely apologized and asked if she could rejoin the class. She did and it never came up again.
Regardless of the family dynamic, it is the teacher’s responsibility to have standards of behavior in classes. My kids giggle a lot during class…we make jokes, and sometimes they get carried away like young girls will do, and have to be reminded to get back to the job at hand. But being disrespectful to horse or human is not tolerated. I do the same thing if a kid is rough or mean to a pony.
Also: If this kid is sharp and talented, and is not being challenged/pushed enough by her trainer, her behavior will be exacerbated. It’s no excuse for being disrespectful, but putting her with teachers without the skills to deal well with her will not work in the long haul. I was the question asker and it drove some trainers nuts. The best ones loved it.