http://blogs.msdn.com/b/heatherleigh/archive/2008/06/04/crappy-questions-you-hope-you-aren-t-asked-in-your-lifetime.aspxOn the Freakonomics blog, they are playing Prisoner's Dilemma . It's fun to read the answers (so many!). My thinking is that you don't necessarily use the question to find out what the other person will do but to influence him to do what you want himen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/heatherleigh/archive/2008/06/04/crappy-questions-you-hope-you-aren-t-asked-in-your-lifetime.aspx#8576708Fri, 06 Jun 2008 04:22:21 GMT91d46819-8472-40ad-a661-2c78acb4018c:8576708Bad_Brad<p>People laugh at the Prisoner's Dilemma, and admittedly the scenario itself is kind of goofy, but the concept of the Prisoner's Dilemma is actually very powerful. &nbsp;It can be used to explain a lot of things, and not just in business. &nbsp;The basic idea is that, while we are all better off collectively if we all made a certain decision, each of us is individually better off if we make a different decision, which results in a very bad outcome for all of us. &nbsp;An example is pollution and Global Warming.</p><div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=8576708" width="1" height="1">