Dunno bout your interest levels in this Stacks but how about aerobatic flying? You could fly for an aerobatic school, compete in aero competitions.....sounds like good fun. Check out this site <a href="http://www.aircombatusa.com" target="_blank">www.aircombatusa.com</a> (I think that's the right one) I'm not sure if there's that sort of thing around you, but they seem to have some radical uses for aerobatics at that "school". Look into the biographies section of the instructors and you'll find them all ex-military.