Are the home test kits very reliable? I'm able to get a two line reading the day after I smoke. I only smoke very little with the wife. On the weekend. I test myself everyday after, for the next few days. Every test shows two lines. The test line is faded, but distinctively there. Is it possible to pass a DOT test 1-2 days after catching a buzz? I haven't smoked in 15-20 years. Just began re-introducing ourselves into it.