I don't know if this has been mentioned, I did not read the thread. The thing I dislike about drug testing in most of its forms is that it only targets marijuana users. Marijuana consumption outside of work hours is imo. a non-issue.
That may be, but nobody has a little black tar heroin, little coke, and/or little meth problem. Weed wasn't a factor in any of these incidents.
While I might agree it's no big deal, I have a family to feed and can't afford to be on the wrong side of that argument in a drug test.