Fio had a problem with her credit card at Walgreen's the other day. She swiped it again and again, but it didn't register. Then she checked to make sure she wasn't using the old, pre-Target hacking edition--and discovered that the card she was so diligently swiping was her driver's license.
Bet she wasn't the first and won't be the last. It's a wonder she wasn't swiping her health insurance card.