I have no idea what it is, but this guy gets pretty frustrated when I don't do something right immediately. He'll play with his phone, go talk to other people, etc while I'm trying to practice something.
Last night, he actually trained two guys WHILE he was supposed to be teaching me. I pay $50 per hour for one-on-one instruction. Anyway, at one point he got frustrated with me so he called over his "apprentice" to teach me instead. I LOVED the "substitute teacher" but I took the situation personally. I specifically pay this instructor because he's good and the one I want to learn from. At the end, I told him that I liked the substitute, that he was encouraging and helpful. He got offended and said, "Well, that boy needs to remember who signs his paychecks!" That was pretty snide.
I texted him and said I didn't like what happened at the lesson, so I'll be going back on Saturday to see how it goes. I plan to talk to him - let him know my thoughts and what my riding goals are. The situation is really disappointing - the instructor is an amazing reiner, but I can't learn from someone who has no patience with newbies :(