maybe one day people will learn you cant flush thc out of your body, all drinks and lots of water do is dilute it and cover it up, but like mentioned before the check for that now to. You could try exercising and burning as much fat as possible then pack on as much fat as possible while not smoking(in theory you could cover up the old fat with thc with new clean fat) i think, but you would probably be clean by the time that worked and there ws a lady around here trying to when a radio contest that drank 3 gallons of water in an hour or two to win her son a wii and went home and died.(True story they played the tape when she was on the radio doing it and the Hosts were joking and laughing about her dying when she was done)