Another way of looking at it is that - a footballer has just damaged the thing you love (which he has the power to do - as he's on the pitch and your not) You feel powerless and frustrated and angry. He then RUNS the opposite direction of his team mates simply to rub your nose in that fact, and there is nothing you can do about it - its the most impotent, powerless feeling you can get, exacerbated by people like him jumping up and down and clenching his fists...