I have always wondered why there are people who are mean on purpose to other people. I can understand unintentional meanness - you know, the misunderstanding type, but I really don't understand intentional meanness.
My daughter is reading a book about dealing with "mean girls," and it stated that the purpose of these girls is to inflict pain. Why would that be a motivation for someone? I am always devastated when I think I have even done something small, like hurt someone's feelings.