Metro boosters keep fretting that the rest of the world doesn't really understand Denver. Outsiders see those nice pictures of Aspen, and they assume this city's in the mountains, too. Or they watch all the coverage of Colorado's assorted sex-assault scandals -- the Air Force Academy, Kobe Bryant, CU recruiting -- and they assume that topography isn't the only thing elevated here. (Colorado: What happens here stays in the national news for years to come.) Isn't it about time to mix those two not entirely incorrect assumptions together with our one tried-and-true, if unofficial, slogan -- "The Mile High City" -- for a brand that's fun, friendly and just a bit frisky?