I potentially have a lifestyle poly coming up.  I have never used drugs before.  However, in college I was exposed to second hand marijuana smoke many times.  I saw in NSA Reject's personal statement about his polygraph experience that his polygrapher asked him if he had ever inhaled second hand marijuana smoke.  When he said that he had at concerts several times, the polygrapher twisted that into an admission that he had smoked marijuana ten times.  So how should you handle it if asked if you have ever been exposed to second hand marijuana smoke?  It seems that if you claim that you never have, it will look like you're lying, but if you claim that you have, they can twist it into an admission.  I also remember from NSA Reject's personal statement that during his third interview he was questioned about every single opportunity he had to do drugs.  I cannot possibly remember this, and considering that they ask you the same questions multiple times, I would almost certainly get confused on the dates and details of every single opportunity I've had to use drugs.  So how do you handle such a question?