I always wonder how they know what to ask. They say they only ask 50 questions. So, how did they know to ask the guy last night if he hated fat people? Or if they blame their dad for breaking up their family? I wonder if they give them a psych exam or something before to bring up their hot button issues?
It wouldn’t surprise me. From what I’ve seen of the show they seem to be good at pushing the right buttons. Come to think of it, in the intro they show the people hooked up to the polygraph so since they tape the test maybe they use a body language expert to pick some of the questions.