Paid more than you got: Ex-cashier reveals shopping trap - occurs especially on Mondays. Fresh vegetables and fruit are sold loose and must be weighed.
The corresponding number of the goods is then entered at the checkout to determine the price. But there are always typos and number transpositions here, as the former cashier reveals. It's worth it for customers to take a look at the receipt after shopping. If the wrong product is on the slip or a discount has been forgotten, the error can be corrected immediately.