Quote Originally Posted by The Lorax
Maybe you should be the one that should be more careful. Do you know if he's an infrequent or frequent user?
Erwoid has good info but some of it is wrong, like the detection times. It also says urine is up to 30 days. I know plenty of people on here and in real life that take longer than 30 days. My answer is based on multiple sources, not just Erwoid. I like to be thorough and not put all my eggs in one basket.