8. The Ghost Prank
http://www.youtube.com/watch?v=MtvWGPoTHEo&src_vid This is actually the first in a trio of pranks on this list from the same group of people (who have actually done many more, but these three are the best). Coming out of the Czech Republic, two friends are driving down a country road. The driver (who is carrying out the prank on his friend Erik, the passenger) pulls over to pee. Having urinated, the driver runs "terrified" back to the car and turns the lights off. When he turns them back on, a creepy girl (who had been placed there as part of the prank) is stood in the line of the headlights. Then, after the first girl disappears, another girl (dressed exactly like the first one to make Erik think it's the same girl) emerges from the trunk of the car, where she had been planted, and grabs him. He absolutely sh*ts himself!