Fair's Fair

It does not surprise me that human beings visit so much misery upon one another - I have seen enough instances where a difference of opinion has prompted someone to wish for the blood of the innocent just so that they might witness the tears of the guilty to understand that one person's tragedy is another person's just desserts. And once you arrive at that point, all one needs for an atrocity is for someone to decide that they are unwilling to wait for Nature, Fate or their god to make that tragedy come to pass.