It's avery, very poor film. The practice itself is one of those things that idiot teenage boys profess to know all about but in fact know f*** all and I would imagine absolutely none of them have taken part in it. As for buying it for your brother if it were me I would simply point out that you have no objection with him watching violent films this looks like a piece of expoitative crap and a shockingly poor film to boot and therefore I will have nothing to do with it's purchase, you can have a fiver now f*** off.