So, I was offered a job based on being able to pass a drug test. I had a stash of clean urine so I wasn't too worried. I was more concerned with maintaining the correct temp than anything else. Fortunately the testing site was literally 5 minutes away from my home. I filled up a small shampoo travel bottle, heated it up to about 103 degrees tucked it and set out. I purposely set my appointment for 5pm on a Friday evening, one hour before they closed, to deter any over zealous tester. It took about 15 mins from the time I left out to the time I actually was allowed to go to the restroom to provide a sample. The temp for my test had to stay in the range between 90-100 degrees. I had to luxury of having spoken to a person who works at another testing site and she assured me that all I would need to supply is 45ml of urine. Well as luck would have it...this person asked me to supply 75mls! At this point I'm stuck. I have maybe 50 ml of clean urine on me of course the toilet water is blue and there was no other source of water. I pour the 50 mls into the testing cup and the temp held good at about 95 degrees. I had no point but to use my own dirty urine to fill the cup. To give a little backstory I had just smoked that morning and had a huge session the night before. I ended up supplying the 50 mls of clean urine and another 10 mls of my own dirty urine for a total of 60 mls. I shook the cup up and handed it to the tester. By it being so late on Friday I figure it would be at least Tuesday before I got the results. I figured I had a 50/50 chance at best. Needless to say I got the call today. I passed the test and was offered the job. Hope this helps someone else. I see a lot of post where people will ask what are the chances that they will pass but few ever follow up with the outcome.