New York, New York: at midnight, the subway cars are filled with partially digested green beer.
South Boston, Massachusetts: anyone not wearing green is stabbed.
Cambridge, Massachusetts: anyone not wearing green loses tenure.
San Francisco, California: Mailmen in the Sunset District are required to take a drink at each stop until they pass out and children steal their mail.
San Diego, California: Everyone eats a burrito made with potatoes.
Seattle, WA: Seattlites drink heavily while staring silently into their beers.
Austin, TX: Everyone tells everyone else they are a quarter Irish.