If you're a stand-up comedian opening for Donna Summer in front of 10,000+ New Yorkers, you probably shouldn't start with jokes about plane crashes. Seriously. When the guy started in on Chesley Sullenberger, the pilot of the "miracle on the Hudson," things got really (but hilariously), ugly, with Brooklynese chants of "Get off da fuhkin' stage!" washing across the crowd. Poor Brooklyn borough president Marty Markowitz, who was emceeing the event, barely got the comic off the stage with his life, moments after a joke about Mexican firemen pulling away a rescue net with an "Ole'!" Possibly the greatest crash-and-burn (pun intended) in the history of comedy.