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He changed more times than a baby in a beer-drinking contest.

Scott Adams (2007). “Stick to Drawing Comics, Monkey Brain!: Cartoonist Explains Cloning, Blouse Monsters, Voting Machines, Romance, Monkey G ods, How to Avoid Being Mistaken for a Rodent, and More”, p.451, Penguin
He changed more times than a baby in a beer-drinking contest.