S9E7: Road to the North Pole
You do what you want, Brian,
but I am going to the North Pole and I'm gonna kill that bastard!
Stewie, you're putting me in a hell of a position here,
but I have no choice.
You're not gonna kill Santa Claus, because he doesn't exist.
(LAUGHING) Really, Brian? He doesn't exist?
That's right, he's not real.
Interesting. Interesting theory, Brian.