HERE'S WHAT U DO PERIOD:
get quick fix 4.0 synthetic urine. comes in a small squirt top container which will be stored in tighty whities, it has a temp strip on it. b4 u leave house u heat in microwave for 10 sec increments till temp stays around 100-110. then u take out and wrap supplied heat pack to it w/ rubber band. that will keep it at that temp 4 4 hours. when u go piss, stick squirt tip through undies instead of cock and squirt. it's yellow and has everything which they check 4 in drug tests, at perfect levels. even if they watch u, which they might not, they won't stare at your cock, maybe standing behind u. google urine-luck.com. something like that, is the site. i've used it w/ ease and passed. alot of others in pot community too. good luck.
i didn't read entire thread but what are they checking u for and why?