I know many of you have already heard of, or been to, this site, but I love it: http://www.overheardinnewyork.com.
Some of these quotes literally make me laugh out loud. My coworkers must think I'm crazy.
One of my favorite ones is from New York . It's not necessarily the funniest one ever, I love it because the reponse of the New Yorker sounds just like something Corey would say. It's perfectly sarcastic.
Satan Island, Starring Vincent Price?
Tourist: I want to go home. New York is so unchristian. Look at this, they even have a place called "Satan Island"!
New Yorker: Oh yeah, we New Yorkers are the worst. We even sold our souls to the devil so we could all read.-Mo