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A cashier has been arrested for allegedly memorising the card details of more than 1,000 customers and using them to shop online.
According to reports in Japan, Yusuke Taniguchi had an eidetic memory - 'photographic memory' - and would study the card information - 16-digit-number, name, expiry date and security code - of 1,300 customers in the time it took to scan their items at the till.
The 34-year-old was working part-time at a hypermarket in Koto ward, Tokyo, when the alleged incidents are said to have taken place.
Police say he would then use the information he had taken from unsuspecting customers to buy things online.
According to reports, in March this year he allegedly used the card details to buy two shoulder bags worth about 270,000 yen (£203) - which he then had sent to his apartment.
This was where things took a bit of a turn, as unfortunately for Taniguchi, he didn't realise the police were onto him and had tracked down the purchase, eventually arresting him on suspicion of fraud.
Taniguchi claims he resold the items he had bought to a pawn shop and used the money he made to pay for living expenses and rent.
Following his arrest, police discovered a notebook containing hundreds of names and numbers of potential victims. They are now investigating them to determine the true extent of Taniguchi's alleged crimes.
However, this isn't the only example of people trying to pull a fast one in recent months.
But rather than an employee targeting customers, one man decided to turn the tables, allegedly scamming Amazon out of $370,000 (£300k) by sending back packages filled with dirt.
The man, reported to be from Palma de Mallorca in Spain, was arrested in relation to an alleged scam that saw him filling up boxes for items like iPhones with the exact weight of the product in dirt, before returning them to Amazon.
It would then take the company a while to realise it had been swindled, as the return packages would end up sitting around in warehouses, where items are simply automatically scanned, weighed and placed on a shelf - without being checked by any employees.
The scam was eventually unearthed when someone conducted a random search, opening up a box to find it was full of dirt.
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