http://www.cbc.ca/canada/edmonton/story/2006/12/12/teens-cameras.html
"Some teenagers are finding a dangerous use for cheap, disposable cameras, turning them into Taser-like weapons. The modified cameras aren't common but are increasingly being found in school lockers. [..] Instructions on the Internet - A seven-minute video available on the internet describes how to make the transformation — by popping out the back and adding a few wires. Other sites also give information on how to make such homemade stun guns."