n0nsensical

Unless you're an EMT or an airplane pilot, it's really none of your employer's god damned business what you put in your body. It's a complete invasion of personal privacy and it's a shame so many people are willing to submit to it. The mere suggestion would be such an insult to me, I'd tell them where to put their job.

Anyway, if you insist on pissing in a cup for money, you usually have more than enough advance notice to stop taking any drugs. If you don't smoke very much, a week is probably fine. Basically you want to be exercising and pissing as much as you can during that time. There are products available at most fine smoke shops that may help. Even if you fail they'll probably just retest you. And you should be smart enough not to take anything before that one. That's all a drug test really is, an intelligence test to make sure even if you're drugging you're smart enough to stop for 1-2 weeks in the case of marijuana or 2-3 days in the case of just about everything else (though if you weren't I'd question why they want to hire you in the first place).

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"Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded." --Abraham Lincoln