You've probably seen the video above where people put cellphones around popcorn kernels and pop them by making a call. Turns out that it's a slightly disingenuous video by Cardo, a Blutooth headset manufacturer, in order to scare people into thinking that cellphones have that much radiation and they really need a headset. The viral video sure did raise awareness for the brand, but there are better ways of selling your products than to try and scare your customers into thinking they need it. [Cardo]