Small number of them are just organically crazy, I’m sure. But consider the effects of years of severe drug and alcohol abuse. It destroys the central nervous system. These “crazies” are mostly long time addicts that have lost their minds due to constant chemical poisoning.
Also, untreated crazies. It's no coincidence that the vagrancy problem exploded after most of the asylums were shut down.
Small number of them are just organically crazy, I’m sure. But consider the effects of years of severe drug and alcohol abuse. It destroys the central nervous system. These “crazies” are mostly long time addicts that have lost their minds due to constant chemical poisoning.