grünebrille

I was not quite sure how to search to see if this had already been asked, so i will just ask it. If you dont feel comfortable, or confident in your ability to pass a saliva test, is there anyway to stall it? even for a day without being denied employment?

What if when i go in and they ask if ive eaten any mints i say "oh ****, i did..." and play it off as if you just spaced and normally eat mints anyway? What will they say? can they revert to a different type of test? If they have not already explicitly said that they would do this, is it within their jurisdiction to require a urine or hair sample on the spot? Or will they just require a saliva sample the next time you show up for work? Thanks for all input

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"Alles is cool, solange ich genügend chille,
grass in tüten hülle, die lunge mit zügen fülle.
die grüne brille, ohne sie hät ich vor 'm leben schiß,
sie läßt mich sonne sehn, wo regen ist"
eißfeldt