25. HOW I MET YOUR MOTHER
''Slapsgiving'' (2007)

Admittedly, Slapsgiving is better conceptually than in execution. But what a concept! After waiting 115 days (according to the CBS Slap Countdown) to receive the third of five slaps from Marshall as a result of the first Slap Bet, Barney finally gets what's coming to him. And while it was nice that he begged, lost his mind, and composed a song for the event, the slap really was more about the anticipation. Still, HIMYM gets cruelty points for holiday violence; Slapsgiving certainly gave us a reason to be thankful.