Science
When ATMs swallowed your card after wrong PINs
HERE’S THE INTERESTING PART
Before sophisticated networking could just softly decline a bad transaction, early cash machines relied on brute force security. If you accidentally fumbled your code multiple times, the massive metal box assumed you were a thief and triggered a specialized internal mechanism to physically eat the plastic card. You had to awkwardly visit a branch manager the next day to beg for your property back.
One discovery leads to another.
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