You don’t have to shake the Mac to clear the screen.
Salivating Dogs, Inc. of Ohio has unveiled the “Clue Delivery System”
(CDS), a small device that plugs into the back of a standard PC keyboard
and delivers a mild electric shock whenever the user does something
stupid. The device is triggered by a Windows program that detects when the
user attempts to open an unsolicited email attachment or perform another
equally dangerous virus-friendly action.