Author Chuck Palahniuk and director/screenwriter Clark Gregg stop by the Apple Store to discuss Palahniuk's novel, Choke, and its forthcoming film adaptation. In the story, med-school dropout Victor Mancini has found an unusual way to make money: Pretend to choke in a restaurant and the person who saves you will feel responsible for the rest of his or her life. Choke is equally provocative and hilarious.