You've seen them. Indeed, you can't avoid them. You step into an online discussion that interests you, and ... there he is. (It might be a she, but not usually.) I'm talking about trolls. So what do I mean? A troll is not : Someone who expresses a contrary view or argument. That's interesting and an occasion for learning. Someone who is socially dim or clueless. Let's face it: at some point, that's all of us. We offend people. Usually, it's unintentional, and when it's pointed out, we realize we've overstepped. If we're mindful, then we try to mend bridges. Sometimes, our offensive comments are totally intended (we are snarky, sarcastic, and/or condemnatory), and we shouldn't be surprised by the response. But, call me old-fashioned, I think we should try to be polite. A troll is : Someone who obsesses about a viewpoint. And here I mean not just sounding a recurrent theme, but demonstrating an unwillingness to let go of a particu...