Temp agencies usually send you to a lab. Better take your friends urine. Stop at a convienence store near the lab. Heat it up for about 20 sec. Pull in the lab parking lot. Check temp with thermometer. Go in when the temp is 105 degrees. It should be ready by the time you fill out the paperwork. Just get yourself a little container and stuff it in your undies. I used a sample shampoo bottle.(make sure it's clean) That's the way I passed my last urinalysis.