On the TV show Lie to Me, the lead character confidently declares that on average people lie three times in a ten minute conversation. He is a deception consultant who excels in reading micro expressions on people's faces to determine if they are lying. This character is based on the renowned psychologist Paul Ekman, whose work revolves around the idea that facial emotional expressions are universal and can be analyzed. He is the scientific consultant on the show and in fact deconstructs each episode in his blog, The Truth Behind Lie to Me. But given that it is a dramatic TV show, Lie to Me focuses on people with strong motivation to lie. Would everyday people with no specific motivation still engage in dishonest behavior when given the opportunity? Apparently the answer is yes given the real cost to the economy of low level dishonesty (returning clothes after wearing, taking office supplies, inflated insurance claims etc) which runs into billions of dollars a year. But what explains this behavior? Interesting answers were found by three researchers who ran a series of experiments to investigate this issue.