Well it was a novelty at first but I think the time has come for it to be banned. I have numerous issues with it and the display in the U20s game was the nail in the coffin for mine. It is a war dance. Why should a team be made to stand there while one mob bounces around, butts heads etc. Perhaps the Australians should be allowed a cavalry charge in response? It's a sport, not a battlefield regardless of the hyperbole accompanying the event. If a player puts one on the chin after being headbutted what happens then?