Buuuuuut all I'm saying is that a layperson might not be aware that false positives can occur and might need education about how they can occur, which is how I took his OP. The OP says he's "clean." I don't know if that means he hasn't smoked in 2 weeks, a month, a year, or ever at all. There's a zillion variables that can affect a given test, so I'm just throwing out info based on the question he asked. But all positive tests are verified by a lab. If he smoked, it'll show it there.
