As a veteran with PTSD, I can say without a doubt this was probably helpful to the guy who got the DUI. Every veteran knows the "hole" story, and it is absolutely true. When I was in a dark hole myself after my last tour, I came home and just laid on the floor in my living room drunk. I couldn't do anything. Couldn't leave the house. Couldn't do anything but just lay there on the living room floor and drink, staring at the ceiling. My best friend in the universe (a legit BFF, if you will), he came and laid next to me on my living room floor. It's hard to describe what that means to someone that's never experienced it. But I will tell you without a doubt that both of those guys got something worthwhile out of sitting in jail together. We spend years sitting in holes in the army (or some other kind of shitty situation), and it becomes natural to draw strength from the unity of having a buddy in the shitty situation with you ("We are experiencing this shitty thing together"). It is pretty important I think to have the same opportunity as veterans after leaving the service. I've since done very similar things for friends of mine, and I encourage any veterans reading this to do the same for anyone you know going through similar trouble.