I was Shelley last summer, people always laughed when Meredith says "Edgar, I'm your mother." This possibly be because We didn't make it abundantly clear Shelley and Bat Boy had sex, (I was only 15 at the time and having me get partially clothed onstage didn't appeal to the director) even though anyone with half a brain could've figured it out.
Anyway, you really gotta see the show to get the full effect.
Am I cut out to spend my time this way?