Authors:

I was busier than a beaver in a coffee lake.

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
I was busier than a beaver in a coffee lake.