At the Grocery Store

A new grocery store just opened up in our neighborhood, and I went there to check it out.  I was zooming around looking at the specials when an older guy stopped me and told me he'd forgotten his glasses.  He asked me if I could read the expiration date on a glass jar of grapefruit sections.

"You're good," I said. "It doesn't expire until May of '13."

"I don't know why my wife lets me come to the grocery store alone," he replied.  Then he told me this story:

"The last time I came shopping I was in a rush.  I didn't even take my wallet, I just stuck my debit card in my pocket.  Of course I forgot my glasses, I always do.  After I found what I wanted, I stood in line at the check out. 

When it was my turn, the cashier swiped my bank card and it was denied.  She swiped it again but it still didn't work. I knew I had money in my account so I was confused.  Why wouldn't my card work?  I asked her to try it again.  For the third time she tried it and for the third time it was rejected. 

Just then the guy behind me tapped me on the shoulder and said, 'Sir, that card will never work.' 

'Why?' 

'Because it's your driver's license.'"