You've never had road rage in a car? How does that work? Seems like most people driving a car get road rage at some point. Then again, I guess the keyword there is most. For me, my bike rage is pretty much nonexistent, which is nice. Part of it is that I take quiet streets on my commute. I also keep in my mind what to expect so I don't blow a fuse. Just like most of you here, I've been close to getting hit many times, been honked at, sworn at, etc, but you kind of expect it, I guess, so you have to learn to shrug it off.
The only memorable bike rage I've had was a couple of years ago when I was biking home from my ex-girlfriend's house and I was coming up to a stop sign. I slow down to a track stand, look both ways and proceed to go, and I swear this car came out of nowhere! I was about to cross the intersection and this car coming from the right of the intersection just blows the stop sign!! Needless to say I got pissed because had I not seen the car and braked, it would've been really bad. I contemplated picking up a rock and chucking it at the car. Obviously I didn't, I'm not that type of person, but that's the only time I ever really remember being really angry at a driver.
Anyway, yeah, learn to let it go and/or find quiet streets; they're more fun anyway.