I can not believe the bullshit I read here sometimes. First of all, teach may not be politically correct but clearly does not deserve a reprimand. That is a joke. Second this is one of those situations where you really needed to be there to truly see how this conversation's tone was. But the teacher should have just said casually, use the full word teacher please, and just let go. He is a fucking adult and should act like it. Its a 9-10 year old kid that you could easily correct simply with let's use correct titles. Give me a damn break. I wouldn't have went to the police, but I damn sure would have confronted the person over this. She addressed him as teach and this simpleton goes ballistic, are you kidding me?
