And you can see their mug shots here. There's not a single person in those mug shots you would ever invite into your house. Their mental disease has progressed to the point that it's reflected on their faces. Go take a gander, seriously. These lunatics range in appearance from "barks at moon and finger-paints with own feces" to "Uncle Badtouch, never allow near children".
Their mental debilitation is written on their faces. You don't even have to hear them say anything to know these people are seriously fucked in the head.