[simonblack]

JUST IMAGINE THE SCENARIO:

You have just been fired and as the security boys are escorting you to the door, you call out, loud enough to be heard in all the cubicles -

"Computer! Format all drives!"

OR MAYBE THIS OTHER SCENARIO:

The guy in the next cubicle has a loud voice and while he is commanding his own computer to "Exit the file without saving" you find that the work you have carefully constructed over the last four hours is suddenly thrown away too.