Jatz...thank you for your concern.As a matter of fact I am aware of "proper procedures" for questions, and I did make sure that the student had left and there were only instructors about.Two reasons for this....1- NEVER EVER chastise an instructor in front of his/her student...
2- I may be wrong!and I don't want to be corrected in front of students!
I was very polite and sincere and got a very rude response from this instructor...which upset me a little.
A smile costs nothing....rudeness may cost you your career!