Stay away from WTF like it has flesh eating bacteria. Go with a good ITF TKD school if possible, and if the school only teaches WTF, make sure the teacher looks like he’s actually seen the streets. You also have to make sure the teacher tries to keep the students in shape or else the students wouldn’t have the stamina to last in a fight. Living in the southside of town, I’ve learned a few things they would never teach me in a dojang though. For one, you might just have to ditch the fancy kicking and stick with the thrusting, piercing and front kicks and learn some boxing techniques. Another thing is to carry a blinding weapon, so in case the perp has a gun, you can flash the blinding weapon (Like a magnesium flash/magnesium light or pepper spray) in his/her eyes and take away the advantage of a gun. After all, you have to see where you’re shooting before you shoot the gun. Anyway, I would start teaching my own class but with my learning disability, I think I probably make for a better student than teacher. And besides, the one student I did teach has done very well for herself. Some guy mugged her last night and she dispatched the guy in the gutter.
At least 20 minutes of exercise before class, made to look like a fun game. He'd let me join and I'd be sweating by the end. The kids loved him. I can't remember who he was associated with, since that he was a great teacher was far more important.