I had a guy, a blue belt, been training for about a year and a half. Nice enough guy, hard worker.
Talks to me after class one day. He wants his son to start taking classes.
You had to be eleven to join our kids class. Tells me his son just turned ten, is really small for his age, extremely shy and gets picked on all the time.
Asked if I could possibly make an exception. So I made an exception.
The boy was really small for his age, and really shy. Second week, the kids are doing blocking drills. The kid is holding up a rising block when he suddenly lets go with the longest pee in the world.
Make a long story short, we bring him off the floor, move the class to the other side of the dojo and call his home. Mom comes down, who I had not yet met. Really nice person, but she tells me “he’s not small for his age, he’s HUGE for his age.”
Come to find out the kid didn’t just turn ten, he just turned six. When I told his mom what the dad had told me, she was really upset and said “you should teach my husband a lesson.”
Two nights later was sparring night. I put on a yellow belt before I sparred with dad. Told him I just turned yellow belt and I’m real small for my age.
For what he did by putting his child in that position, I beat that man like a dog caught stealing chickens. And told him if he quit over the beating I would come to his workplace and beat him in front of his coworkers.
That poor guy had the toughest following year of any student I’ve ever taught. But he learned the lesson.