aggressive behaviour doesn't just apply to performers, it applies to coaches and spectators as well
hostile aggression is when harming others is the primary aim of the behaviour. for example, punching someone
channelled aggression is when harming others is part of the overall aim of gaining a successful outcome. for example, a rugby tackle
reactive aggression is acting aggressive in reaction to a perceived threat. for example, going 50/50on a football tackle as you now the opponent will
instrumental aggression is aggression that is used to achieve a goal, such as getting a reward. for example, a boxer hitting an opponent to win a fight