Being a standup comedian is difficult for a number of reasons — lots of travel, meager pay, unresponsive audiences. But the most annoying aspect of the whole ordeal is probably hecklers.
In this supercut from Digg, you can check out some of your favorite professional comedians responding to those unfortunate audience members who were foolish enough to pipe up during their routine. As you can probably deduce, there are lots of expletives involved.