LOL i think they are going to be able to tell the difference between dog piss and human piss lol...

dude when i was on probation what I did was drink like a cup of cranberry juice the day of the test in the morning, about 8 cups of water and a B vitamin. Then I continously drank at least 4 cups an hour up until my test. The B vitamin keeps your urine yellow and the water and constant pissing keeps flushing out your body so that the urine has no time to sit in you to accumulate toxins (or high concentrations of them)