Palmer’s not the only successful CEO who got started at McDonald’s. Author Cody Teets interviewed dozens of people who launched their careers at the fast-food chain, including the founder and CEO of Amazon, Jeff Bezos.

“You can learn responsibility in any job, if you take it seriously,” Bezos, who’s worth an estimated $71 billion, tells Teets in “Golden Opportunity: Remarkable Careers That Began at McDonald’s.”

“You learn a lot as a teenager working at McDonald’s. It’s different from what you learn in school. Don’t underestimate the value of that!”