Scientists in Grenoble, France have created a silver-crystal coated wallpaper that blocks Wi-Fi signals. The wallpaper will be available for sale next year, but amazingly isn't being marketing to the people who're convinced Wi-Fi signals cause testicular shrinkage and saggy boobs but instead as a defense against Wi-Fi stealing neighbors. Because God forbid you put a f***ing password on your router. "You can do that?" Haha -- yes grandma, you can.
Thanks to jedi GK, who locks down his Wi-Fi the old fashioned way: naming his router 'Connect_and_die'.