In this video, we learn how to pull a "virus of doom" prank. once you have this downloaded, you can place the program into your start menu. Then, when someone else clicks on it they will get a large skull on the computer. It will say that the hard drive is formatting and the hard drive has been erased completely. You can download this link at http://householdhacker.com/content.php/130-Virus-of-Doom-Prank-Download. Once you download it, you will see what the icon looks like, then place it on your menu for a great prank that is harmless to the computer!
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.