Central Intelligence Agency Director David Petraeus walks the floor of the New York Stock Exchange to ring the Opening Bell as the CIA Commemorates it's 65th Anniversary on September 18, 2012 in New York City. He shocked the world just a month later with his resignation.
- [Spencer Platt/AFP/Getty Images]

People walk past Goldman Sachs headquarters on March 14, 2012 in New York City. Former Goldman Sachs executive director Greg Smith wrote a scathing editorial about the company while resigning in the New York Times.
- [Mario Tama/AFP/Getty Images]

Brian Dunn, Best Buy CEO, poses for a photo with the first shoppers in line at Best Buy for Black Friday hot holiday deals in Eden Prairie, Minnesota. He resigned amid an investigation into his inappropriate conduct with a 29-year-old employee.
- [Craig Lassig/AFP/Getty Images]

Apple CEO Steve Jobs speaks during an Apple Special Music Event at the Yerba Buena Center for the Arts September 1, 2010 in San Francisco, California. Jobs resigned in 2011 due to his battle with cancer.
- [Justin Sullivan/AFP/Getty Images]

Photo taken 30 January 1973 in Washington of US President Richard Nixon delivering his State of the Union Address to the Congress. He resigned over mounting pressure about the Watergate scandal.
- [AFP/AFP/Getty Images]