Quote from Barney in The Slutty Pumpkin Returns
Barney: [leads chant] USA! USA! Come on. Robin: Okay, so rather than wearing a Mountie costume and end this forever, you show up shirtless to an outdoor party? It's practically November. Barney: No biggie. I ain't cold. Robin: Huh. Interesting. It's fascinating. Almost as if your body was accustomed to low temperatures after generations of adapting. Canada. Barney: No.