I'm just going to throw in my two cents.
Not that I don't believe you, but I know for a fact the FBI and all other govt. officials get drug tested on the regular, at random, making me feel like your uncle probably doesn't smoke, or does very rarely. About buying the seeds, theres a very good chance that they mark it down, and props for the heads up, but most growers, like myself, will usually order seeds to a friends address with a fake name. And if you order seeds, lights, or even large amounts of nutes to your house, on your credit card, your probably should be fucked.
But thanks for the heads up