@Grivusangel -- That is pretty extreme, but as you said, is probably necessary to keep people from trying to alter the test results.
I really hate the whole urinalysis process. It's annoying to have to pee in the cup, then you have to clean up yourself and the cup, and preferably, drink a bottle of water on the way over to plump up your veins, and give your kidneys something to do so you can actually produce a specimen.
I always like to know in advance if they want a urine on me so I can make sure I drink a lot of fluid. I try to anyway; as I said, it pumps up my veins and makes them easier to access.