Just refuse directly: I don't want to teach privately. Otherwise, whatever you say, they have something to answer. I just said directly: no money, no way! There is nothing to be ashamed of. The money is my own. Why should I spend it to save face? Not worth it. During the exercise tonight, another personal trainer said that he would show me the equipment and how to exercise. If you don't answer the phone, just say you practice, and you'll be fine if you refuse at first.