>>Enter this in the Command Window on a co-worker's PC:
>>
>>ON SHUTDOWN *
>>
>>Then clear the command window.
>>
>>Lots of laughs!
>
>I once faked a 3-D shooting game for a friend, that once you rtied to move your gun a progress bar popped up and it was titled "Formatting Hard Drive"
>
>I think I did it in Delphi though?

That should scare them for a moment or two.