(clockwise from left) Mike Millar, Valeree Pieper, Erin Lounsberry, James Turilli, and Mark McGinn in The Drowsy ChaperoneI had an utterly fantastic time at Quad City Music Guild's preview performance of The Drowsy Chaperone, director Bob Williams' high-spirited and hysterical presentation of the long-running Broadway hit. Yet I'm embarrassed to say that I may have inadvertently missed 10 of its most entertaining minutes, because I made what was, in retrospect, a terrible mistake: I left the auditorium during intermission.