Barney uses his supposedly destroyed playbook to help Ted with his girl troubles on How I Met Your Mother. "Weekend at Barney's" is the 18th episode of the show's eight season.
Barney: Ted what is my one rule? Ted: You can tell how old a girl is by her elbows? Barney: My other one rule. Ted: Flax seed relieves upset stomach? Barney: My other one rule. Ted: Always have a fake pair of concert tickets in your pocket in case Lily invites you to something stupid? Barney: My other one rule. Ted: Labanese girls sprint to third base and then stay there. Barney: My other one rule. Ted: New is always better? Barney: New is always better!