I have a pre employment drug test on Monday the 17th too...I'm freaking out...I haven't smoked in 30 days and I've taken two at home tests from walgreens that show an extremely faint line in the test region...one on Tuesday and one yesterday...I don't know what to do but I'm unemployed due to my last job closing and I really need this job...I feel for you man... I'm going to go thru with diluting with powerade and taking some b complex vitamins...Good luck to you my friend.