You think someone that lives on the street is sane? 30% are schizo, the rest are fucked-up in other ways. It sure as hell ain't normal. Many are agoraphobic, they can't stand being indoors. Many were in prison, can't take any kind of confinement or rules. Many men were divorce-raped. Some watched their spouse or child die, and lost it. You never know someone's background. It's easy to lump them all together as lazy drunken bums. I used to do the same. I lost my ex-wife to schizophrenia, she became homeless, it was heartbreaking, and not her fault. I have no idea where she is now.