Barney manages to scare of Lily for the next four weeks when he tells the peanut butter versus jam joke. While we never get to hear the punchline we do get to hear a funny way to hide Alyson Hannigan's maternity leave.
Robin: Let's make a pact, if we both turn 40 and we're both single.. Ted: Robin Scherbatsky, will you be my backup wife? Robin: A girl always dreams of hearing those words. Yes, yes, a million times, yes!
Ted: Chinese [food]? Barney: I don't like Chinese. Ted: Indian? Barney: I just said, I don't like Chinese. Ted: Indian isn't Chinese. Barney: Weird meats, funny music, side of rice. Why are we splitting hairs? Ted: Mexican? Barney: I just said, I don't like Chinese!