That's crazy. I gotta tell you. I'm on house arrest & probation. I have to take a test every Friday @ 4. I smoke every Friday/Sat./Sun., then I dont smoke Monday-test time. I drink 2 bottles of H2O in an hours time, and piss once before I test. Then, just before I go in, I piss a little in the building next door & go take my test, but i dont finish pissin in the cup. I finish in the toilet. I read that the begining & end of ure piss sream is the dirtiest. I pass every week. I have no idea how. If anyone has any insite, i'd like to hear it. I'm not complaining, just wondering.