"The Hobo Code" is the eighth episode of the first season of the American television drama series Mad Men.
Pete seduces Peggy and they have sex on an office sofa, then complains to her that his wife Trudy doesn't understand him.
Later, when Trudy unexpectedly visits Pete with a bottle of champagne, he is flustered and argues with her for showing up unannounced.
Out of the blue, Bert gives Don a check for $2,500, telling him that his talent is appreciated, and then urges him to read the book Atlas Shrugged.
The next day, Archie refuses to pay him as promised, and as the hobo leaves the farm, Don finds the symbol for "a dishonest man" carved into a fence post in front of their home.
Back in the present, Don takes a Polaroid photo of Midge and her friend Roy and realizes the two are in love.
Don invites Midge to Paris again, and when she turns him down, he signs over the check, suggesting she buy a car.
Upon returning home, Don wakes his son Bobby while his sister Sally is asleep nearby, telling him that he can ask him anything he wants and promises never to lie to him.