Working cards at ATMs

The following is supposedly a true story. To be included, besides being true, the story is most likely strange, weird, surprising, or funny.

One day in line for the automatic teller I overheard:

[Person 1]: Gee, I don't get it..

[Person 2]: What's wrong?

[Person 1]: My card wont work.

[Person 2]: Did anything happen to it?

[Person 1]: I don't think so... It wasn't working very well for a while, so I rubbed the strip on the back with a magnet to recharge it... Now it isn't working at all!