Ok, there is a girl that rides the same horse as me in a horse show series. She is older than me, and refuses to let me do anything but hold the horse while she grooms, wraps, etc. I have tried to stand up to her before, but she just ignores me. I can't find an opportunity to tell my trainer, and my mother will be watching the horse show, while her mom just stands there, seeing the halo. At the second show, I was holding the horse, who is an older, nearly bombproof lesson horse who I have never known to bite, kick, bolt, etc. while the other girl is brushing off the horse. The horse's hindquarters were right near a door. A couple of little boys came running in, and slammed right into the horse's butt. I quickly went back to make sure they weren't hurt, and briefly explained to them why they shouldn't run at a horse stable. After they left, I walked back up to hold onto the horse and praise him. All the sudden, the girl started yelling at me; "Oh my gosh, you supposed to be holding the horse, you idiot! He could have kicked me!" Her mom stood there staring, so I simply said "You don't talk to me like that. If you want, I can just leave you here to do the rest of the work" After that, she just snorted and kept brushing. Did I do the right thing by saying that? What should I do next time this happens to me?
P.S. Karma got back at the girl. Twice. First, she was wrapping the horse, and one of the wraps was soaked in horse urine , and the next time, she got into a riding accident, and couldn't be at the third show