There is more and more onus on teachers to educate pupils about the perils of social networking sites such as MySpace and Facebook.
But in Ohio it seems that the message is not getting through. A sweet 16 party turned sour last week when an estimated 2,000 teenagers showed up at a venue intended to accommodate 100.
The teenager's invited guests spread the word through messages and Facebook posts that the nightclub would be holding a free teen night. Those without invitations were turned away and spent the evening in the car park. The throng got so excited that police had to shoot pepper balls at the ground to corral the crowd. Next year, the birthday girl will probably keep her plans to herself.