As a martial arts practitioner and an instructor, it is often easy to let things get to one’s head and start to think “my school/art is the true way and the best way!”
The world is a very large place and martial arts is never about one school, one style!
For one to bad mouth another, especially as a head of a school, only shows the lack of mental and character training. And to do so in front of one’s students, that person really should no longer be teaching. No, this person is NOT FIT TO TEACH!
Live and let live.
If you feel threatened, it only means you have no confidence in your art. In that case, you can either train harder or simply give up. Your choice. Living a life feeling threatened is no way to live at all. Be better, better than others and more importantly be better than your previous self.
The above has been a credo in our school and is strictly followed.