Thanks to Twitter further eroding the wall between your big mouth and a moment required to download some good sense, the Internet is now empowered to get you fired faster than ever.
I guess if a person is going to get fired they might as well get that ball rolling. Why wait to get fired tomorrow when you can get canned today? Isn't one of the habits of highly successful people: be proactive? If you have a big mouth and want to tweet to give that gigantic mouth an outlet, do it now.