Season 4 episode 10 'The Figt' 

A bartender, Doug gets involved in a fight with a group sitting in their yêu thích booth. Marshall and Lily try to warn them off, but Barney vows to tham gia in when Robin reveals that she thinks fights (particularly fight scars) are sexy.
những từ khóa: Bố đã gặp mẹ như thế đấy, himym, full episode