I admit that I get pissed from time to time. I usually just call them names (unless there are kids in the car) and leave it at that. I dont do the flip off/horn yell out the window thing much, and I dont go and cut people off or tailgate them. But I do get angry.
The reason is, because if people just realized if they drove passively, at or near the speed limit, and didnt mess around, they'd have a lot more time for themselves. Time is very valuable to me. I work 16-18 hours a day, and I get to relax maybe an hour a day if I'm lucky, and if I have to go anywhere outside of town, I spend that hour behind these morons who are trying so hard to get where they are going they end up causing traffic problems. If they followed a few simple rules, we'd have no issues with transportation.
This is one of the primary reasons I dont like going to AFP, because every time I've planned a trip up there, a drive that theoretically should take 45 minutes, always takes an hour and half at least (just to get there. Not including going back!), and I am usually not able to get off work that long. No matter what time of day, I end up spending a large portion of the time doing the stop and go thing at 35mph on I-5 going thru north portland. It sucks.
So, the right lane is for passing slower traffic. Not for some ass hat who does not know how to read a speedometer and goes over the speed limit.
I'd be happy to see people going anywhere near the speed limit here in portland. The speed limit is 55-65 on most of the freeways, and the only time you ever see that, is 3am when few people are on the freeway.