Talk, talk, talk, talk

There are people who just love to stir the pot, that are never happy unless the people around them are in turmoil, preferably caused by them. They make snarky comments, pit people against one another, lie, manipulate, and when called on their behavior go all obtuse and say "Isn't it terrible when people act like that? I've been around for ten years and I've been treated so badly. I've seen it all."

No, Bitch. You've caused the majority of it. And the reason it's been around you for ten years is because you like things that way. No situation you're in is that hard to avoid. You just don't want to.