JR 137
Grandmaster
Z-Ultimate has a pretty good system for self defense. Unfortunately, it is very easy to own a school, so if the person running the school is like that your suggesting, then it's a horrible idea, if he is a legitimate martial artist, I would recommend it.
Good to know. Unfortunately, you have to take anything dojos like that say with a golf ball sized grain of salt.
Just like everywhere, the only way to weed out the bad ones is to visit.