Is it innapropriate to impersonate Batman? Spongebob, George Carlin, or any other hero? That's what kids do... They explore the world through play and make-believe. (Some have more access to props than others, though). Depending on the kid's age, he may have been borderline disrespectful. Perhaps he doesn't have another appropriate role-model to advise him of such a faux-pas. In that respect, as long as CS kept his cool: good job... I'd've kept it out of the men's room, though. Now, a grown-ass man running around like that is a whole 'nother thing.