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It is easy to see how this would be used in India. I have seen multiple instances of a police officer directing traffic walk up to a motorcycle stopped for cross traffic, reach out and turn off the motorcycle and take the key. When the driver hands over the money the officer hands back the keys. Quick transaction, likely too quick to realize the note was a 0 rupee note. Once saw this happen so close that the officer smiled at me as he took the money right outside my car window.

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