The only time I ever thought a hat might be useful were those occasional instances when the (ex) Mrs OKC wanted me to give her a damn fine rogering whilst I'm wearing my uniform... uhm, and come to think of it, she's not been the only gal that's wanted me resplendent in my Company 'threads' (preferably including a hat, no doubt perched at a jaunty angle) whilst doing the horizontal boogie... strange creatures women!