"It's better'n bottlin' it up, ain'a?" (J. Hilings on the subject of anger and frustration management)
Repressed anger is a killer.
You take it out on yourself instead of the obnoxious miscreant who's sorely in need of an @ss-kicking.
I used to hold it all in because I'm naturally overly polite and I didn't want to offend or appear to be "evil, mean & nasty".
Now I don't care and I feel *much* better....:)