"I didn't realize there was a ranking." I said. "Sadie frowne..." — Michael Thomas Ford quote meaning

I didn't realize there was a ranking." I said. "Sadie frowned. "What do you mean?" "A ranking," I said. "You know, what's crazier than what." "Oh, sure there is," Sadie said. She sat back in her chair. "First you have your generic depressives. They're a dime a dozen and usually pretty boring. Then you've got the bulimics and the anorexics. They're slightly more interesting, although usually they're just girls with nothing better to do. Then you start getting into the good stuff: the arsonists, the schizophrenics, the manic-depressives. You can never quite tell what those will do. And then you've got the junkies. They're completely tragic, because chances are they're just going to go right back on the stuff when they're out of here." "So junkies are at the top of the crazy chain," I said. Sadie shook her head. "Uh-uh," she said. "Suicides are." I looked at her. "Why?" "Anyone can be crazy," she answered. "That's usually just because there's something screwed up in your wiring, you know? But suicide is a whole different thing. I mean, how much do you have to hate yourself to want to just wipe yourself out?