Jimmy Fallon had a running gag on “The Tonight Show” Friday (July 25) that culminated in Jon Hamm being attacked by a fake door-to-door crack dealer, but to fully appreciate the joke, you must start at the beginning of the night.

Above, Fallon’s monologue features a joke about a man who got fired from McDonald’s for dealing crack on the job. The joke snowballs into someone trying to get you to add crack to your order at a McDonald’s drive-thru and ends with the aforementioned door-to-door crack salesman — watch the videos in order, it’s worth it.

And in case you missed it, later Hamm and Fallon took part in a rather amazing sketch about the TV show they did together in the 1980s called “Palisades Park Pet Patrol.”

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."