Here's looking at you, kid!

In a strange reversal of my usual MO, he approached me to take his pic. I was happy to oblige even though he wouldn't be my typical target. 

I tried having a bit of conversation but he was rambling on in a rather incoherent way and I couldn't even get his name. I showed him the pic, he seemed to like it, and he walked away, still talking -- to himself or some invisible companion. There are way too many 'disoriented' people like him living out on the street in D.C. Do they have families? Does anyone look after them, I wonder...