A dozen students bowed to the flag, then turned and bowed again to their instructor, shouting, “Thank you, sir!” Every Taekwondo class ends in this manner. But this time, my son’s instructor walked ...

In the movie, “Animal House,” there’s an iconic scene where a pledge is being initiated into his fraternity, and, after each vicious hit with a wooden paddle, cries out, “Thank you, sir! May I have ...