I don't think this is a bad thing, necessarily, because it has prevented me from getting fired/divorced/deported on many, many occasions. Many, MANY occasions. There's something to be said for practicing that much restraint, and sometimes I'll even reach over and give myself a little pat on the back. And if I pat myself a little too hard because of the anger that has built up in my little 5'2" frame, then so be it.
Oh, but then there are the TIMES. You know the ones. The times when it is physically painful for you not to utter those words. And it doesn't make you proud of yourself at all when you choose not to say them.
Goes right along with being a serial tongue-biter.