Come to think of it... my daughter took Judo for one season. She could have become okay at it, but decided to quit after one season. Mainly because the teacher (a green belt - don't know what kyu) didn't want to be firm towards a couple of young boys who endlessly obstructed the training. Several parents approached after training and said that they would find it okay if she told these kids to behave or stay away - at first maybe a quarantine - later expel them. They definitely did not respect their teacher nor the other students. Really bad thing was that often their parents would stay and watch the training without taking action towards these kids.
I have decided not to send anybody away that I believe can better themselves, but also not to take any c... from these kids. I had one last training who rolled his eyes when I told him not to monkey around fighting with his partner while they were supposed to practice their technique. I got a little strict on him, but I don't want pretend fighting and striking or kicking wildly during my classes.. if that's what they want they can go take up Ameri-Do-Te... (http://www.youtube.com/watch?v=3CGMWlXosp4