Attilio Anthony John Wagstaffe
I understand that feeling very well........
You used restraint.....
That's not restraint.
Restraint would be bowing out and dressing out. You can tell the Sensei, out of ear shot of his students, that his behavior was disrespectful to you, and then work it out like civil functional adults.
The loss of composure is always a failure of character, and is an obvious display of insecurity.
No one is perfect and we all get upset from time to time. But let's not lower our standards and accept the loss of composure as acceptable or even par.
Just my opinion. But disrespect should never be met with more disrespect.
One man's failure to his civil obligations does not release me from my responsibilities to civility.