The secret underground shadow government doesn't resort to typing with the caps lock on when they want to emphasize that something must be done "at all costs!"
Caps Lock. It's that key above the Shift key with a-million-and-one uses, from showing anger to messing up case-sensitive passwords. Those used to the Shift key may have Incorrect Lowercase Letters because of it.
Frequently combined with swearing to make an Atomic F-Bomb
. Often mistakenly used as cruise control for "cool."
to turn Caps Lock on.