Remember you are the customer
I was a student at a very well known IR school in the UK and the standard of care from most of the staff was very good. However the new senior instructor is unbelievable he has publicly put down students and has no social skills. Many students have now refused to fly with him, which he blames on them not accepting how bad they are.
My advice if you are doing professional training and paying large amounts do not let yourself get stuck with an idiot remember you are the customer and you should get the service you pay for and you should be treated with some respect.