18. "Guy Walks Into An Advertising Agency" (Season 3, Episode 6)
The Red Wedding of Mad Men, at least in terms of laundry bills, as the fate of Sterling Cooper gets altered by a deus ex lawn mower. Admittedly, this episode is totally cheating in terms of the long-term story — Sterling Cooper's new bosses have a very bad Fourth of July, yet there are no recriminations. Nobody gets fired, not even that sad sack Lois. Ken Cosgrove, who brought the lawn mower to the office, gets promoted a few episodes later. The story never makes the Madison Avenue gossip rounds — it just never comes up again. My, those evil British overlords are forgiving! Or maybe, just maybe, this is a rare case of Mad Men playing fast and loose with the narrative to indulge some primal pulp thrills — and getting away with it.
Joan/Lane watch: A handshake in a hospital. Torture.
Best line: "I apologize for my wild imagination."—Bert Cooper