When I was just a tyke, me and a friend of mine would always try and pull pranks on my mom. They usually failed though, because, "I have eyes in the back of my head, don't even try it." Well, believe it or not, this gave us the idea for a really good prank, the first one that actually worked.
The first thing you'll need is a camcorder to record the whole thing, so you can copy it and distribute it over the net afterwards. I wish I had recorded the incident with a digital camera, but I didn't, so some other everythingian will have to do the experiment and publish the results.
The following, is a description of the video. I was the star, my friend the camera man.
Picture materializes and my smug mug peers into the camera.
"My mom always says she has eyes in the back of her head. We've decided to test this with a scientific experiment."
Camera Man: "Exhibit A"
Zooms in real close and pans across an egg situated in my hand.
Scene changes, my mother sitting on the couch with her back to the camera, watching TV. Out of nowhere, an egg flies forward and explodes on the back of her head.
It was the funniest shit ever