It's an old critic's cliche that political theater can't be entertaining and pure entertainment can't be political. Kay Martinovich's dark-night one-act Get Your Feet Off My Neck!, subtitled "a performance examining gender roles," is both--a social critique and a fine and funny comedy. Mind you, this is no close-minded propaganda. Get Your Feet Off My Neck! works a lot like another Zebra Crossing Theatre show, last year's Woman's Day, in which a popular women's magazine was dispassionately examined until all its hidden contradictory messages about love, power, and body image were revealed. This time the raw material is the memories of Martinovich's adept, comically gifted cast. Structured as a series of revues and monologues, the deceptively simple show achieves far more than a more ponderous critique could ever hope for thanks to the cast's openness, sincerity, and willingness to confront their own attitudes about gender and gender issues. This comedy also contains moments of poignance, such as when a little girl who loves her Legos is manipulated by her father into playing with a Barbie, as well as moments when the anger behind a funny sketch is all but apparent, as in Hannah Fowlie's story about a stranger who let it slip that she didn't want her infant daughter to turn out as "fat" as Fowlie. Anyone who believes that feminist concerns only concern women should check this out. At the Avenue Theatre, 4223 N. Lincoln, 728-0082. Through April 4: Sundays, 7 PM; Mondays, 7:30 PM. $7.