For example after Sol Campbell left Tottenham for Arsenal, Tottenham fans started singing this at games:
Sol, Sol, wherever you may be
You're on the verge of lunacy
And we don't give a f**k if you're hanging from a tree
You're a Judas cunt with HIV
(to the tune of Lord of the Dance)
In my mind fans at baseball and American football games probably just groan and say stuff like 'jeepers!' when players from their own team mess up. Maybe a loud 'come on!' if they feel the referee has unfairly penalized them. Or am I wrong and baseball/handegg fans are equally capable of organized aggression/racism/homophobia/etc.?