My mate was clean for a couple of months and smoked every night for a week. 3 days later after getting shipped back to work he got a random drug test issued and passed the following morning. He said he simply drank lots of water and took a multi vitamin the night leading up. Why is it all over the net I read minimum 30 days to pass a urine test. Are these people ill informed or is there truth to it? Have you guys had any experience with passing on short notice?