I'm not sure one can go off half cocked as that is a safety position according to my mate the late Midshipman Hornblower.
Right, as you were, carry on.[smilebigeye]
Quote:
Half-cock is when the position of the hammer of a firearm is partially—but not completely—cocked. ... The still commonly used English expression of "going off half-cocked" derives from failing to complete the cocking action, leading to the weapon being unable to fire.

