I've never been asked to take a drug test in my 16 years in the trade. Never once. But I do like the idea of being asked just to see the persons reaction. I would say though, for the most part, employers in this trade are in need of people (especially younger people) who know the trade well enough and can work on their own so they might be willing to look the other way on this matter. If I was an employer, and I plan be one one day, I would only be concerned with production on the job and the professionalism of my employess. What they do on their time is their business, as long as it does not directly effect my business.

just my 2ยข