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.
Ted: We should buy a bar. Barney: Of course, we should buy a bar! Ted: We should totally buy a bar. Barney: We should totally buy a bar. Our bar would be awesome. And dude, dude, dude, dude... the name of our bar... Puzzles. People will be, like, "Why is it called Puzzles?". That's the puzzle
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!