Yeah, that's a big problem with piloting. The kind of personality that brings most people into the cockpit is independent to a fault and something of a control freak (try screwing with my space/setup/flight plan and see how happy I get), with the added visceral love of all the crazy stuff you can do in an airplane. I've only got my Glider and Private licenses; my favourite things to do are the things I shouldn't know how to do, only my instructor got bored on an instruments run. =P
With the military, it's generally worse, 'cause you also want fighters. You want people who'll take it to the limit, really push, and be aggressive and competent and fearless while they're doing it--within the abilities of the aircraft. I think trying to ban "hot-dogging" is a losing proposition. Someone is always going to say, "hey, watch this!" with their hand on the joystick. Instead, set aside training and flight time for it, so that pilots learn to screw around safely, and the kind of things they should be checking for first. Like, you know, unsecured objects.
Might help. 'Sides, that way I'd get to learn all sorts of neat things to do in a plane. =P