Recently, when checking out a movie, I saw a very interesting security check. Blockbuster almost always asks for your current address to make sure you are still living at the same place. A woman was checking out a movie and she was doing so on her husbands card. The cashier said, “John?” and she said, “Yeah, that’s my husband”, and she said, “Are you still at 603 Main Street?” and the woman said, “No, we’re at …” The cashier said, “Okay, I was just checking”.
Since Blockbuster regularly asks for your address, asking for the wrong address when the person is suspect provides a pretty good way to make sure someone isn’t using your card illegally. Just an interesting annecdote.