Poyndexter

Okay, there is a possibility that once a month I will get ramdon tested. I know for a fact that the bathroom used to take the test is the company's public bathroom (which has a lock and a sink for normal use in it). I also have seen the ua cups that they administer (although not closely). I'm fairly certain just from seeing other people go through the process, that I won't be watched closely, if at all. And to explain the test, it's not dipstick per say, it has a readout and a thermo on the side. The readout has bubles under each different drug type that light up if possitive.

Now to my questions. The first involves food coloring and heated water from the bathroom tap. I have done research on-line, but can't really find anything about using this method. What I'm unsure of, is if the dipstick test actually needs urine to produce a result (certain chemicals maybe that set it off?), or if I can use water to fool it.

The other would be adding bleach to the cup before peeing in it, with my obbviously dirty, dirty, dirty piss.

Keep in mind that I do have one "dose" of clean pee left, but I plan on using it for future job hunts. And it would also be a pain in the ass to prep, since I leave for the meeting from work and ride with one of my boss's.

Any replies/help would be appreciated, thanks.