Anyone who walked into my barn for ten minutes and just heard pieces of lessons would think my trainer is practically abusive. She's not above telling me that the spin I just performed is pathetic, awful, worth nothing, etc. However, she cares SO much about her students and is SO good about communicating, that these comments do nothing but motivate you. She cancels them out with encouragement and praise when you finally do get it right, even if it takes all day and night of yelling and taking the beating to get you there. If she knows you can handle it, she'll do it.
But you wouldn't know that if you just walked in and saw her absolutely tearing someone apart. She's particularly tough with me because I've been there for so long and she knows my skin is thick and that I can take the beating from her. It doesn't mean we aren't very good friends, and it doesn't mean she's trying to demean me or look down her nose at me. She just knows how to light a fire and keep it going.
I would talk to the trainer. Worst she can say is no, and who cares if she thinks your request is lowly? If she's that much of a snob to say that, then her opinion is of no value to you and you shouldn't even sweat over it. You can find better.