*loses his grip on the gun and hears rather than sees (he won't look, cannot look) as it drops into the water with a plunk!* *if it cannot be an asset, at least it is out of the equation, and he never liked guns, anyway*
*whirls before he can put together a thought or a strategy around his fear—you are too quick for him to think—and throws all his weight behind a right hook aimed at your face*