Man vs. Wild
Ferrell appears on a special episode of Man vs. Wild where he tackles the Arctic Circle with Bear Grylls. During the show, Ferrell descends a cliff in a “dead man’s anchor,” impersonates the host, and eats a reindeer’s eyeball.
I figured it would be pretty strenuous, pretty kind of intense. When you’re hanging from a ladder off a helicopter 600 feet in the air, that exceeds your expectation.