comment: Just a side note: I had a job as a medic mostly on construction sites and it involved both pre-employment and post-injury drug tests. It’s not just a weed test. Meth, and especially coke, are also very common to find, and I’d say I found non-negative results for coke maybe 60% as often as I would find them for weed (in a recreational legal state). The reason is obvious in that construction workers know they’re likely to get tested at unpredictable intervals due to injuries, so more choose things like coke that are out of their systems fast.