I took my LVMPD poly this past week.  I don't know how it went, but I feel pretty good about it.  I was asked what I know about the polygraph.  I said absolutely nothing.  If the guy only knew that I was calling his every next move.  I was talking to a guy who was taking his the same day as me and he said he was not a bit worried about his polygraph as he winked at me.  I'm not sure what he meant by that.  This is what I find amusing; so many people are learning of ways to learn about and beat the exams, I don't know why they are even used anymore.