Joey Tribbiani: We’ll flip for it. Ducks or clowns.
Chandler Bing: Oh, we’re gonna flip for the baby?
Joey Tribbiani: You got a better idea?
Chandler Bing: All right, call it in the air.
Joey Tribbiani: Heads.
Chandler Bing: Heads, it is.
Joey Tribbiani: Yes!
Chandler Bing: We have to assign heads to something!
Joey Tribbiani: Right! Okay, okay… Ducks is heads because ducks have heads.
Chandler Bing: What kind of scary-ass clowns came to your birthday?
From Friends – Season 2 Episode 6: ‘The One with the Baby on the Bus’ (2×06)