"Theoretically", could I pass a drug test if...?

I have a drug test in 4 days. Could I cleanse myself of marijuana if I worked out 4 hours a day, visited a local sauna twice a day, drank 2-3 gallons of water a day, popped a couple of niacin pills, drink cranberry juice, and take a shot of vinegar before the test? I've heard some weird ones, too. I guess... show more I have a drug test in 4 days. Could I cleanse myself of marijuana if I worked out 4 hours a day, visited a local sauna twice a day, drank 2-3 gallons of water a day, popped a couple of niacin pills, drink cranberry juice, and take a shot of vinegar before the test?

I've heard some weird ones, too. I guess masturbating and aspirinn both help (so I'm told), but don't drink soda? Help please!
Update: EDIT: And I had I had a drug test 2-3 weeks ago. Since then, I've smoked every other day on average, and smoked last night for the first time in 4-5 days.
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