Watch Oprah's visit to the café
During lunch, Oprah sits with three Harpo staffers. "It really bonded people in a way that they'd never been before," Oprah says. "Because when you could sit up and talk with your co-workers about passing gas, that means you've created a level of intimacy like no other.
Still, Oprah has one concern about the challenge: "What happens when 375 people have had beans for lunch?"