

I worked in toxicology, and there wad study on THC and gas-station analog use and driving impairment that was done near a military base. Every time it’s referenced in conferences, the presenter ALWAYS says “if you’re in the military and have illegal drugs in you’re system, it will ruin your life. They also know what drugs and metabolites are tested for, so they make sure it isn’t in their system during random drug tests” *wink-wink*
There was an interestingly large number of people with weird THC-analogs in their system for this study specifically.

As you shouldn’t. It was often mixed in a concrete mixer with random plant matter (hopefully at least hemp) and a jar of chemicals from China, then packaged with cool graphics. It was a ridiculously high percentage of the time that what was in the package wasn’t what it was on the label. Per brand you could expect it to be consistent…ish, but it was something like >50% of the time it was not what it said it was.
It was basically whatever analog wasn’t illegal at the time in China was produced then shipped to the US, and the sketch packagers didn’t give a shit what it actually was.