In Spain over the weekend, a bicycle rental kiosk screen was hacked to play an adult movie (click the image to enlarge) for more than an hour before someone could shut it down.
As the hour grinded on, the crowd grew larger, and the policewoman who first came to the scene was apparently laughing the whole time she called the incident into the station.  How did they fix it?  They taped paper over the screen until the company responsible for the kiosk could shut it down.