I know of an inner-city public school in which the children show up after the weekend with black eyes and bruises all over.
When asked how they got bruised, they enthusiastically answer “Fight Club!”
“What’s Fight Club?”
“That’s where Daddy takes me to fight with other Third Graders. If I win, Daddy gets all the money.”
Yes, it’s been reported to CPS, and has gone underground. The kids still show up bruised, but they keep their mouths shut.