Last spring We 'R' Us . . . That Lesbigay Play, Zebra Crossing Theatre's subcultural revue, played to packed houses at the Theatre Building. Little wonder. It had the pep of an "Up With People" roof-raiser without the condescension: this compilation of hit-and-run slices of gay/lesbian life had an edge that went beyond mere feel-good self-examination. Buttressed by quotes from famous gays, the sketches covered fresh territory: revisionist sexual history and stereotyping, the challenges of growing up gay, ways to handle verbal abuse, the intricate timing of coming out. In a monologue written by the mother of coauthor J. Scott Ament, a woman recounted her emotional coming-out after she learned her son was gay. A "bar ballet" fast-forwarded through a night of social bonding. Same-sex relationships were viewed through a spoof of Wild Kingdom, hosted by "Marlene Perkins." The show also probed the problem of gays who discriminate against other--say, older, plainer, darker, or female--gays. (You know who you are.) Monday night We 'R' Us returns to the boards as a benefit for Open Hand Chicago, the meals-on-wheels program for people with AIDS and their dependents. Song stylist Suzann Marsh is the featured vocalist at the reception that follows. At Remains Theatre, September 30 (1800 N. Clybourn, 271-4175). Monday, 7:30 PM. $20.