Two students who died after climbing into a huge helium-filled balloon for the 'buzz' of inhaling the gas have been named the winners of the 2006 Darwin Awards.
Jason Ackerman and Sara Rydman, both 21, were discovered with their feet sticking out of a deflated balloon used to advertise property in LakeView, South Florida.
The two apparently pulled the balloon out of the sky and squeezed themselves inside, where they died of oxygen starvation.
The awards are named in honour of Charles Darwin and given out every year to people 'who have improved the gene pool by removing themselves from it'.
This year's runner-up was a man who flew his copper wire-bound kite during a thunder storm. The 26-year-old, from Belize, died after the kite sent a fatal bolt of lightning through his body. He was an electrician.
In third place was a Brazilian who tried to dismantle a rocket-propelled grenade by driving back and forth over it with his car.
When the weapon failed to break up, he attacked it with a sledgehammer. The explosion killed him and destroyed six cars and his workplace.