This guy I used to work with put it kinda like you did. They are saying those things because they are, usually, unhappy with whatever in their own lives and misery loves company. So why make myself miserable when im generally a happy person? And if you want to take the vindictive route - not saying anything will just make them even more steamed lol. Im figuring out lately that it's much easier than I thought to just say "im done with this" and change my mood. Like when my boyfriend and I are in some stupid fight I just say 'this is rediculous. I dont want to be mad anymore' and it's over. I guess no one has ever really taught me how to handle those kinds of things so it'll be more work but oh well.

thanks again all of you.