1. Go through Harlem, Compton, or some other lower-class mainly-black neighborhood goose-stepping in a KKK outfit while doing the Nazi salute. Extra points if you go into KFC wearing the "ghost costume", order a bucket of Original Recipe, take off the hood revealing that you're in blackface, and start doing a minstrel show routine.
2. Paint yourself red from head to toe, and do the Running of the Bulls in Pamplona. Throw rocks at some of the bulls for greater effect.
3. A reverse of the first one: go to a KKK/neo-Nazi rally, wait until everyone is drunk into stupidity, and proclaim your love for other races, interracial marriage, and affirmative action.
Anyone else got some?