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    $\begingroup$ I went looking, fascinating stuff! Apparently the first recorded vending machine accepted coins and dispensed holy water...2000+ years ago. $\endgroup$
    – Ruadhan
    Commented Nov 8, 2018 at 11:32
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    $\begingroup$ There are public toilets where you open the door with a coin. You don't get it back.. $\endgroup$
    – StessenJ
    Commented Nov 9, 2018 at 13:56