Originally Posted by
yanxfann
Maybe I've just been lucky, but my experience has been that it is literally impossible for the same card to be scanned twice. Once it's been scanned, it's been scanned.
Yeah, I thought that was the case too, but wasn't positive if it was at Staples or ODOM. I'm pretty sure my cashiers have at times messed up at both of those stores and accidentally tried to scan the same card twice and it always popped up an error.