Thank you for your response so quickly!

My anecdote stems from my friend's advice about how he failed the polygraph.  He said he used the information on this site to use countermeasures with controlled breathing, and thinking of pleasant, or unpleasant thoughts at the appropriate time.  He said at the end of the exam, the polygrapher told him they were concerned that he was using countermeasures because there was no difference between his reactions during irrelevant questions, and during relevant questions.  The main issue he was concerned with was with some minor marijuana use during his college years.  My friend explained that he felt he would have passed if he had adjusted minorly his breathing rate during irrelevant questions, adjusted it majorly during controlled questions, and then used his normal breathing rate during relevant questions.

I will take your advice and not adjust during irrelevant questions.

Wish me luck with my polygraph today.  I'll inform this forum of the results.