Clearly, drug use and submarining don't mix. (Unless, of course, you consider alcohol to be a drug.) On USTAFISH, I remember one guy running out of the Fan Room right after we got underway, yelling that there were spiders in there. We laughed and gave him a hard time, and it was only when his next urinalysis came back that we realized that he really was hallucinating spiders.
While the libertarian part of me wonders if maybe the Navy is a little too intrusive with what Sailors do on their own time, the still-present authoritarian part of me thinks that overall it's a Good Thing that the Navy does their best to keep Sailors on the straight and narrow -- to a certain extent. What do you think?