I'm a cashier and I hate when customers expect us to know what's wrong with their cards. All we do is scan items among other tedious tasks.... But I do agree that she should have at least let you swipe it a couple more times cuz sometimes it's the machines that doesn't work and not the cards.
"For a star to be born, there is one thing that must happen: a gaseous nebula must collapse.
This is not your destruction.
This is your birth."
"Life is a temporary journey we just have to deal with"