mac, apparently they'll target the longer tape elderly. ours was about $250. the other incident was $150. the walmart manager could have been reluctant to believe us (a counter-scam) but, fortunately, he knew us. i am sure that the cashier was suspect previously. my wife always closely scrutinizes the receipts due to disbelief in the total and cashier's incompetence. she has caught many scanning errors. they are supposed to scan each item, they don't. they'll take 1 of 20 alike items, such as tomato soup, and scan the same can (tin) approximately 20 passes. suddenly, the million dollar computer has been short-circuited by a fallible human memory. we've simply got to eliminate the "human element!" lol

certainly, if you are just picking up a couple of items they have a different strategy..they secretly rake your receipt off onto the floor on their side of the counter hoping that you won't notice or ask. management counters that with a sign "DON'T BAG THE RECEIPT" because that's where the scammers say they had put it. your "lost" receipt, of course, has a cash-back entry on it. by the time your statement comes you won't remember the transaction.

another "innocent" error is: the new mom behind you loads the conveyor belt with 100 jars of baby food and they jump the separator and you get charged for them. anybody for 6 jars of strained prunes? strained carrots?