Of sheeesh, so here we go- the ultimate reason that those who oppose drug tests is because- (Ta Da-) They're the one who do drugs. And- gee- it REALLY won't affect my job performance, mister, because I only do drugs on weekends and anyway I'm willing to take a voluntary AIDS test although I oppose your right to use a polygraph to tell rather I ripped off the LAST guy who hired me to run a cash register. If, on the other hand, you hire me as a dentist in your pratice I must inform my patients if I am HIV positive (according to public concensus) even though you, as an employeer, don't have the right to ask me if I am HIV positive nor ask me to take a test as a condition of employment. See where the paradox is?