From the BBC article: "For a time one company operating in Nagoya could be hired by parents to burst into their children's rooms, give them a big dressing down, and forcibly drag them away to a dormitory to learn the error of their ways."

I was just thinking of starting up something like this in Australia, but just realised the bikies (e.g., Hell's Angels, Nomad, Rebels etc) already do something very similar.