I was reading about this webpage - Fire Me. I keep telling myself, whatever I write here is going to be public information forever. Glad I don't really care. :)
I used to work with an idiot, but he told me that before you send a nasty email, and your finger is quivering over the send key, don't send it. Wise advice. Now extend that idea to everything you type on a computer, and you should be OK.