Have been a smoker for the majority of my life. Got a good job and laid off the smoke. Got laid off, started back, had a small issue. Hadn't smoked in 3 months at least, and it wasn't heavy, when I did 3 month ago. Clean for 3-4 months, and smoked about half a jay of goodie-goodie and 28 days later got a surprise test. UA. From everything I have read, I should be good, but still have the worry inside. I haven't heard about failure from the PO but this is my first time EVER doing this, what are the chances of my being dirty? Just need some reinforcement. Drink lotsa water all the time and sweat a lot. Thanks for ANYONE to provide some input. Making me CRAZY!!!!