The warmly charismatic David Pompeii has a wit that can cut political fallacies and dopey politicians into shreds. An excellent stand-up comedian, he makes you laugh--and think. Unfortunately there's little stand-up material in this 45-minute show. Instead Pompeii's "one-man cabaret" is an unsuccessful melange of quirky videos from the Internet, a DJ mix of dance and hip-hop beats, and wandering comedy sketches that quickly grow tiresome. But maybe the show would be better with a more raucous audience. Pompeii clearly wants interaction--he's set up "the people's mike," available for audience members to disagree with him, cheer him on, or tell their own stories. But the crowd on the night I attended rarely got up the courage to speak. Through 11/23: Tue 10 PM. Second City E.T.C., Piper's Alley, 1608 N. Wells, 312-337-3992 or 877-778-4707. $8.