They say that football (soccer) is a sport played by gentlemen and watched by barbarians, and rugby is a sport played by barbarians and watched by gentlemen.
Maybe it used to be true; now it seems that football is all barbarians and rugby is all gentlemen, although some are less gentle than others.
Football hooliganism is a blight, and it is as much 30 year-old life-long gang members as younger people. A bunch of fucking morons.
Normally they give their attention to other hooligans. Somehow two idiots hitting each other is strangely karmic.
When it effects the game or other fans or bystanders, it's inexusable and very un-karmic.