"I feel like I just went to my own funeral. And I didn't like the eulogy." Throughout its two and a half season run so far, Mad Men has been positively overflowing with shocking, memorable, and sensational moments but the scene in this week's episode of Mad Men ("A Guy Walks into an Advertising Agency") has managed to walk away with one of the most gasp-inducing scenes ever glimpsed on the period drama. Yes, I'm talking about that foot. This week's stunning installment, written by Robin Veith and Matthew Weiner and directed by Lesli Linka Glatter, was notable for several reasons beyond the morbidly hysterical bloodbath at Sterling Cooper. Centering as it did on the upcoming Independence Day holiday, the installment revolved around several story strands: Joan's departure from Sterling Cooper as she awaits the news about Greg's residency, Sally's inability to let go of her grandfather even as she cannot deal with the arrival of her baby b