> It actually surprises me that you can be high as a kite in a hospital and that doctor might not be able to detect what drugs you’re on Funny - I have the opp

> It actually surprises me that you can be high as a kite in a hospital and that doctor might not be able to detect what drugs you’re on Funny - I have the opposite notion: it amazes me that it is possible, with blood alone, to determine what someone has ingested. I tend to think of digestion and metabolism as a sort of one-way hash function, but apparently it's a fairly weak function, and rainbow tables abound.