Fast forward to today: same thing, another piss test for a temp job, but this time I planned ahead. I drank two water bottles beforehand, while filling out paperwork at the agency, so that I'd be ready when I went to the clinic, and it worked perfectly.
As the night follows the day, so it happened that the office was backed up and I had to sit in the clinic for over an hour, while I waited to be ALLOWED to pee.
Very funny, sitcom life.
In other news, barring the unforeseen I'll probably be starting a new job in the next week or so. Nothing to write home about, but at least it's not in a factory (though that was a character building experience and blah blah blah).