I've loaded many a homeless into my fire engine to take to the local Crisis Resource Center/ Behaviour Rehabilitation center because they begged and pleaded that they want help. Great!
More often than not, we see them a few days later with Steel Reserve cans littered about after someone calls 911 for what appears to them a dead man on the side of the road.
Mental illness is brutal. I feel for these guys, especially as I get older and start seeing my age equivalent homeless folks with PTSD and the like. The Vietnam vets are being replaced with Gulf war and Afghanistan vets. It is heart breaking to be sure... especially because many of us have served. We try, again, to hook these guys up with the VA... but they must want the help. It will not work otherwise.