The new credit/debit chip cards seem to have a high failure rate and they can’t be trusted to work when you need them. My wife had two fail in the past several months at inopportune moments.
I sent my wife and younger son to the crowded Walmart grocery store by themselves because I was just too tired to go. My wife bought a large amount of groceries and attempted to pay with the chip card. Naturally the chip didn’t work and she did not have another method of payment with her at the time. She next tried the ATM in Walmart using the same chip card to get money to pay for the thawing groceries. The ATM locked up with an error signal and she could not get her card out. The electric cart she uses to shop in Walmart also got hooked on the ATM slightly at some point during all the fun times. Walmart personnel came to the rescue and at least retrieved the offending chip card. They rolled the cart of packed groceries to customer service to figure out what to do next.
My son drove back to get me while my wife waited with the melting groceries at Walmart. Fortunately my debit chip card worked and we were able to get the big load of groceries home before any real damage was done. A little excitement in otherwise humdrum day would be my thoughts. My wife had an alternate opinion on the days proceedings. I guess the moral of the story is always have two methods of payment and never trust a chip.