Sports mania represents some of humanity's most base impulses: namely, violent tribalism. Sports fans regularly riot after sporting events, either to celebrate "their" victory or mourn "their" loss. This is not harmless enthusiasm. They cause property damage and public unrest for no reason more worthy than that a group of overpaid athletes failed to outperform another group of overpaid athletes. The stakes are kept artificially high in football, ensuring that fan enthusiasm remains at a dangerous peak throughout the season, thus ensuring that riots are more likely.