" 14. Procrastinator’s Clock. For those who are chronically late to meetings, there’s the Procrastinator’s Clock, a downloadable program for your computer, that displays a digital clock that is guaranteed to be up to fifteen minutes fast. How fast? Well, that’s the nudge. You are never exactly sure because the clock unpredictably speeds up and slows down. That assures that users can’t game the system. We think that this device might help the lawyer of this team (who shall remain nameless) get to Noodles on time for lunch. A physical version of this clock has already been patented by a company called Emergent Technologies. "

― Richard H. Thaler , Nudge: Improving Decisions About Health, Wealth, and Happiness