Rigsby,
It took me 7 years of fighting my way into and out of bars and jobs and blowing through 2 marriages before I started 'settling down' after the 'Nam. We didn't have a fraction of the help available to us then as our folks do now. Watch Sam and give him space and don't pry too hard. Combat vets develop a super close relationship with their buds that cannot be replaced back in the world. We go through withdrawls from heavy, heavy adrenalin, the intense action and 1000% focus on your surroundings every second of your existence. It really is a form of addiction. Get him into a race car ! That's a close resemblance to combat focus, action, and adrenalin. That's why I race.