September's inaugural Yell Fest was a wild, chaotic mess. Put on by Comedy Works house comedian Chuck Roy, the night was advertised as a search for "Denver's biggest asshole." What the night actually determined was that given limited rules and ample booze, everyone's an asshole. Roy has since fine-tuned the format, and the resulting Stand-Up Comedy Battles, which take place on the last Wednesday of the month, have become a hilarious match of wits between the city's finest comics. Featherweight, Middleweight and Heavyweight contestants receive subjects about a week in advance, then square off on each topic in front of an audience to see who wrote the funnier jokes. Simple enough formula; the results, however, are anything but.