Greg Fitzimmons at Hilarities

Hecklers? Bring 'em on. Comic Greg Fitzsimmons doesn't mind. In fact, he actually enjoys their antics. "I love them," he says. "[They're] dynamic and bring out what I consider to be my strengths — improvising and humiliating jackasses!" Jackasses aside, Fitzsimmons, a frequent guest on The Howard Stern Show, digs all forms of audience participation. A self-proclaimed "comic without a hook," he uses free-association to enthrall his audiences. "I demand that the audience not be passive. The energy in the room shifts with each show, and that's what keeps me doing this. It's like riding a bull." Saddle up with Fitzsimmons as he returns to Hilarities for five shows through October 29. Tonight's performance is at 8 p.m. Tickets are $15 and can be purchased by phone or online, where you'll also find details on his other upcoming performances. — Logan Boggs 2035 East Fourth St., 216-736-4242, pickwickandfrolic.com.