In the article of the “should the fistfight be banned in ice hockey?”, the author addresses the question of act by some the players may be count as violent action in many competitive sports events, sometimes it even causes serious injury or death. And, even the ethic code of the sport, rules or the referees are unable to clarify the differences between the accident actions or the intend actions. Which leads people think or pretend their actions as reasonable or allowed even it is not. Here I will do a farther research on the original cause of those violent actions from the psychological aspects of the players, coaches and audiences.
First, the