I agree totally with Wingswinger. My main regret is the almost total lack of respect in the civvy world. Having every tom-cobly-and-all call me 'mate' as an airline captain really pisses me off.
Also, in the RAF, you could make a difference. In the civvy world, no-one gives a !!!!. Your opinions and suggestions are largely ignored. You waste your breath. Do your job, go home. Be happy.