420feetuphigh

I have a joint in my room, containing marijuana inside it.
I am subject to random, non professional UAs once every 2 weeks.
i have not smoked bud in over a month becouse of the trouble i could get in,
but i have weed on me, n i wanna smoke it, but with all the UAs i need to find the write time.
in the past i have had good success pasing drug test,
becouse they where either not supervised, or i knew when they would be,

in this case they are both random and supervised,
i have 2 options,
1. Dose any one know any quick and accurate ways to pass piss tests on the spot while supervised,
2. or do i wait until i receive the UA, pass it clean, and smoke as soon as i can after the UA with the knowledge of having an average of 2 weeks to get THC out of my system before being subjected to another UA.
or any one have any other ideas
Its fucking spring out there n its the perfect time of year to blaze, but if i walked out there at this moment, an smoked, then had a UA in a few days, n failed, id lose my job, id be subject to rehab again, plus i woulf be flooded with more UAs n shit.

mind you i have no money, to get detox products with, so it has to be a free method.

Advise please
and thanks,
a stoner just waiting for that hit