I heard through the grapevine that one of my employers (who drug tested at time of hire, but not after that) said &quot;I can&#x27;t do random testing, I&#x27;d lose half my staff.&quot;<p>Another one joked that &quot;We used to drug test at hire, and if you didn&#x27;t come up positive for ANYTHING, we&#x27;d fire you.&quot;  That was based in a state where medical MJ is legal, and their drug policy was the most reasonable I&#x27;d ever seen.  &quot;What you do on your own time is your business, and we only start caring if it affects your work performance or interactions with coworkers during work hours.&quot;<p>Meanwhile, the place where I spent 12 years not only tested at hire, you were under the constant &quot;threat&quot; of &quot;random&quot; testing, and the same policies applied to everyone - from rig workers and truck drivers, to programmers.  The only time I got &quot;randomly&quot; tested was after a coworker on my team had blown his &quot;random&quot; test... A couple of weeks later I was &quot;randomly&quot; selected; at least HR had a sense of humor about it. &quot;You won the piss test lottery!  Go down to XYZ as soon as you get in this morning and pee in a jar...&quot;<p>This meant that my first and only time I&#x27;ve ever tried MJ was at the age of 40.