I was trying to think of hoaxes, but couldn't help but think of the "Balloon Boy" hoax that happened on Oct. 15, 2009 in Fort Collins, Colorado. Richard and Mayumi Heene filled a silver helium balloon up and let it go in the air, and claimed their six-year-old son was inside of it. It was a publicity stunt that wound them up in 20-90 days in jail.
Any who, I then thought of pranks, and it let me to THIS
Every time I use YouTube I sometimes fear that my video will be "Rick-Rolled." Take a look at the video below to know what I mean:
Each person watching the screen was expecting to watch a certain video, except that wasn't possible because the video they expected to continue watching got rudely interrupted by Rick Astley's song "Never Gonna Give You Up."
I think it's interesting when you consider the "realness" of the video. The video you except to see should be the real deal, but then it changes to an 80s music video. The video prank is all in good fun, I don't think it teaches us anything or alters our way of thinking about the universe, except maybe your music selection/taste.