But it’s very easy to push an old lady down to the ground and take one of the doors off the barn and put it on top of her like a sandwich and pile stones on it until she can’t breathe anymore. And that makes all the badness go away. Except that it doesn’t. Because there are other things going on, and other old ladies. And when they run out, there are always old men. Always strangers. There’s always the outsider. And then, perhaps, one day, there’s always you. That’s when the madness stops. When there’s no one left to be mad.
― Terry Pratchett, I Shall Wear Midnight