Apparently, robbing McDonald's has become a thing in Australia. McRobbery's are so rampant down under that McDonald's locations in Aussieland are taking measures to protect themselves by spraying criminals with an invisible mist of DNA. I repeat, AN INVISIBLE MIST OF DNA. The DNA seeps into the criminal's skin and is visible under blacklight for two weeks.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/4clIBPGxWlE/mcdonalds-is-spraying-robbers-with-an-invisible-mist-of-dna
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