Quote from Marshall in The End of the Aisle
Marshall: What is it? Barney: The cornflower blue tie. That's the one I should be wearing. It's right by my bed. Back in Manhattan. Stall for me. I'll be back in six hours, tops. [Marshall slaps Barney] Marshall: That's all of 'em! Barney: Wow. Wait. I'm free. It's over. The slap bet is finally... over? Marshall: Yeah, it is, buddy. Barney: Thank you. You know, this may sound crazy, but I'm gonna miss that slap bet. Marshall: No, you won't. Barney: No, you're right. I won't.