Viewers of Mad Men are familiar with the compromises required by a career in advertising: kowtowing to difficult performers (and their wives), relationship-straining hours, the possibility of losing your nice office to a weaselly account man. Until the latest episode, however, the show hadn't portrayed an employee trading sex for the acquisition of a new client. (Well, there was the Utz thing with Bobbie Barrett, but let's not get into it now.) Now that the barrier has been breached — in a story line revolving around an actual, extant company — Advertising Age has sought comment from the client in fictional question, yielding a surprisingly equanimous response.