Well I went down for my drug test on 10/17. You do not have to drink the 40 oz of water if you dont need to. Also, no one is over your shoulder either. If you stay in the bathroom a little bit longer than expected theyll ask what youre doing. I had a shy bladder of course lol, and the doc asked if I was ok. I went and that was it. They give you a copy of the drug test sheet and thats all. Youre on your trip home. I havnt been called back for my medical yet though. My list number is 249 so I believe I should be called back soon for my final processing.