I can't stand Prius drivers.
I have some serious issues with the concept of buying a new car in order to be green or to save money (ostensibly on gas), but my dislike of Prius drivers has nothing to do with their poor grasp of rudimentary math.
It has to do with the fact that they block traffic.
See, I'm all for fuel-efficient vehicles getting to use the HOV lanes. And I'm OK with fuel-efficient vehicles being slow. Designers have to make compromises for high gas mileage. No problem.
I am not OK, however, with these jackholes sitting in the HOV lane going slower than the traffic to the right. If you are slow in traffic, then get to the right. I don't think it's too much to ask. Of course, you WILL probably have to stop yapping on your cell phone for a minute in order to notice that traffic is whizzing past you on the right. And you will have to deal with the blow to your self-esteem that is driving in the slow lane.
But then, you can still be all smug and superior knowing that your car is half electric. See? So it'll all work out. Now stop impeding traffic and get out of my way, because I can get the same gas mileage as you at 80 MPH.