Quote Originally Posted by brdad View Post
How would you know the other side of that USB connector isn't wired into the main electrical supply? I know I am a cynic, but I would not trust plugging into something like that.

It's too bad, it is a neat idea and would be fun if there were not so many people out there that get their jollies out of ruining other people's fun.
there is a wireless USB kit used for development of USB devices where you need to protect your computer from your USB device in case something goes wrong. Great for situations like this.