3. "The Hobo Code" (Season 1, Episode 8)
Don smokes pot for the first time, getting high at Midge's Village pad, listening to Miles Davis with her boho pals. ("You're good with the words, man." "Well put.") He flashes back to his childhood encounter with the hobo, who taught young Dick Whitman the rules of the road — how to read strangers, how to mark your man, how to keep running away from trouble. Sal, the gay art director, could have used a similar tutorial in the arts of hobo Kabuki. But instead, he has an agonizingly sad dinner with the traveling salesman from Belle Jolie Lipstick.
Best song: Chubby Checker's "The Twist," which comes on the jukebox and turns Peggy into an American teenage rock & roll machine, even if she still makes you wonder why the hell she'd want to dance with Pete. And Joan somehow manages to steal the show shaking her hips to "Choo Choo Cha Cha."
Best line: "A dishonest man lives here."—the hobo