It didn't work because I had no choice but to use my own piss since I dumped my sample. Someone said that I could use their piss but before I could get it I was tested..so I fucked myself over in that one. I going to be tested 3 weeks from now. I had stopped smoking on the 19 of feb. but smoked 2 small loose bowls, one on the 24 of march and one a week before. So I think I'm clean, I've been drinking water and riding my bike. I'm going to by a home kit and test myself the day before and see. so yah say I should be good if I pass the home..cool