Teens film sex act, fearing Large Hadron Collider doomsday.

Maybe they thought it was called the Large Hardon Collider? From News.com.au:

High school students allegedly filmed sex acts while believing that the Large Hadron Collider was about to end the world.

At least three teenagers from a Brisbane state high school are being investigated by police for allegedly filming sex acts on a mobile phone and distributing it to other students, the Courier-Mail reports.

Two students aged between 13 and 15 performed the sex acts in the toilets during school hours several months ago.

The incident occurred after the launch of the particle accelerator ring, the Large Hadron Collider (LHC), which some dubbed a "doomsday device", sources told The Courier-Mail.

It is understood the girl wanted to lose her virginity to the boy - believing that the world was about to end.

Another student filmed the sex acts on his mobile phone without the girl's knowledge and then circulated it around the school and the wider community via bluetooth.