I certainly hope that this choir teacher is not thinking of becoming a psychologist! What an ignorant attitude that shows a complete lack of empathy for things he does not understand! Give yourself the courage for being mad yet controlling your response - although I agree he needs to be reported somehow perhaps to the teacher of the psychology course he is taking, at least. Good work with your own control. Remember, you have a good heart and try not to let those who are so ignorant attach their labels on to you.