what kinda crackhead would put piss in the frig with there food. that shits just nasty yo
Because most of us don't have a separate fridge for urine/plasma/blood specimens, yo. Also, urine is sterile - compare this with the bacteria living it up on raw hamburger you may also have in your fridge. Plus, I assume we're talking about a sealed container, not a big bowl of urine.
Phreex is right, probation is a good thing. I've never been to any kind of jail situation, but meeting with a guy once a week and taking some classes that tell you to manage your anger are good compared to being incarcerated. Plus, you get to meet lots of interesting people without being confined to an 8' x 6' cell with 'em. Always a plus.
Remember that acid and shrooms are undetectable, and that pot stays in your system for a long ass time. For everything else, a good 2-4 days should be all you need.
As far as piss-test security, it greatly varies. I've had closed door ones in an actual bathroom, and I've had stand outside the door 90-second time limit to piss ones where there's no sink and the water in the toilet is dyed green.
Hell, I even applied for a job at a urine collection facility. They didn't hire me, but that would have supplied some interesting stories. (Note: this was all "workplace" drug-testing, not "piss dirty and go to jail" drugtesting.