Most people - whether they've had theatrical experience or not - understand the concept of the Actor's Nightmare. You don't know your lines, you're not in costume, you don't even know what play you're in ... yet you somehow find yourself on stage, in front of an audience, and expected to perform. Now.

Nickel & Dimed, currently playing at Augustana College's Potter Hall, opens with the Server's Nightmare. In the span of five minutes, our protagonist, the newly employed Barbara (Christine Barnes), is briefly introduced to the eatery's wait staff, gets a quick tutorial on procedure, takes breakfast orders from her first (uncooperative) table, brings out their meals, and is immediately ordered to return them - the toast is wrong, the oatmeal is cold, and could I change my side dish to prunes?

At which point Barbara turns to the audience and says, with a frozen grin indicating barely concealed rage, "This is not my real life."

During Bertolt Brecht's The Threepenny Opera - the German dramatist's revolutionary musical-comedy collaboration with composer Kurt Weill - we're meant to feel uneasy. With its cast of beggars and rogues, obliteration of the fourth wall, and refusal to cater to conventional audience expectation (the songs here, devoid of proper finales, don't so much finish as stop), The Threepenny Opera is a fascinating, deliberately alienating piece. Our enjoyment stems from how unconventional the show is, but in no traditional sense are we meant to simply like it.

So in regard to director Corinne Johnson's Depression-era Threepenny Opera that recently opened St. Ambrose University's 2006-7 theatre season at the Galvin Fine Arts Center (and closed on October 15), was it a failing or a blessing that so many of its performers were so damned likable?

As part of his stand-up routine, Florida-based comedian Ron Feingold - appearing at Bettendorf's Penguin's Comedy Club October 5 through 7 - performs what he calls "mockappella," in which he apes the stylings of such singers as Joe Cocker, Axl Rose, and Nat "King" and Natalie Cole. And during a recent phone interview, Feingold did appear to possess an uncanny gift for mimicry.

Of course, the only character voice I heard him do was Elmo's.

My Verona Productions' The Nonconformists Double Bill is composed of two comedic, one-man performance pieces; Jason Conner and Adam Lewis star, arranged the material, and serve as the show's directors. In the show's first half, Conner enacts a half-dozen vignettes from bohemian performance artist Eric Bogosian's Sex, Drugs, Rock & Roll; in the second, It's Just a Ride: A Tribute to Bill Hicks, Lewis has fashioned a 40-minute monologue from the stand-up routines of the late comedian. And while the work is a local debut, I'm probably one of the few people in the area who initially caught the production when it opened out-of-town.