Most pre-employment UA, they don't watch you. Listen and learn guys I've done this alot. They'll have you remove your shoes, you'll take everything out of your pockets and if your wearing a hat you'll have to take that off. The cheapt and effective solution? Buy a 4.5 fl oz enama bottle, empty out the solution thoroughly so no residue is still inside the bottle. Then insert clean urine, half way is fine. After that use a home thermometer to take the tempearture, get the urine to around 98 degrees right before you stick it in your underwear. Most test sites require a urine tempearture between 90-100 degrees by the time the nurse or whoever reads it. If you take 2-3 oz of urine at 98 degrees and stick it in your underwear really up close and personal in your business, that bottle will lose around 1 degree every 4-5 minutes, so figure you have a 30 minute window from the time the bottle is 98 degrees till the nurse reads it to stay above 90 degrees. Ok, your wondering, how do i do this? The simple way is to drive to the test site, but don't take your papers in that get filled out. Go into the lobby and see how many people are waiting in there and as best as you can guess from the time you walk into the lobby until your sample gets read. You need to then say you forgot your papers in the car (to avoid suspicsion of coming in and leaving), then use the heating vents on the dash in the car to heat the urine up to 98 degrees. Take the home therometer with you so you can get a reading right there in the car. Ok, lets say it now reads 105 degrees and you got it too hot? Easy you the A/C, keep doing this with the heat and A/C to get it to 98 degrees. The second the therometer says 98 degrees, stick the bottle down in your underwear and head in with your papers like all you did was go out to the car to fetch them, you now have 30 minutes to get your sample read by a nurse so the temp is above 90. When you go in, take the bottle out, take the cap off and squeeze the urine out so it sounds like your pissing. Then finish with the real thing in the tiolet for more assurance of being realistic.