Quote from Barney in Bagpipes
Barney: Oh, you fight. See, Robin and I never fight. Ted: Of course you do. Barney: No. And here's the secret. Every time it looks like we're about to get into a fight... [flashback to Robin and Barney in his apartment as he eats breakfast:] Robin: Um, why is there a bag of panties labeled "April 2008" in your closet? [Barney puts his newspaper down, stands up and walks out of his apartment; present:] Ted: So any time you think you might have a fight, you just get up and leave? Barney: 100% effective. Can't fight if you're not there. That's what Gandhi taught us. Ted: Boy, that's not true.