Chewing gum seemed to do the trick. Wasn't even planning on getting swabbed, had the fake pee strapped to my leg ready to go...
I even ripped on the pipe a few times before my interview at the temp agency to calm my nerves. Was chewing orbit gum the whole time right up to the test, so that is about the only thing I can say had a impact on the results of the test because I still got the job.
My best guess is I still had enough of the sugar alcohol in my mouth from the gum that it messed the the test up.
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