Oh man. I was almost hit by a driver turning right on red from East Liberty Boulevard onto Penn Avenue (might be a no turn on red intersection... I'll make sure to check). She started accelerating just as I was crossing on a green light, but stopped and didn't hit me. She did race ahead and pulled into the parking lot by Trader Joe's. I followed her in to engage in a brief discussion, and she got out of her car and invited me to fight her if I wanted to say something.
That I declined, but she offered her opinion that cyclists have no right to use the road. I corrected her, but I don't think she understands the law any better. She ended the discussion by calling me a f*gg*t. After that, I went on my way, convinced she was not interested in having any kind of productive interchange.
My take on it is that Mick's analysis applied perfectly to her:
Most of us know people who don't need a car, and can't afford one, yet make great sacrifices to own one. "You HAVE to have a car, man."
My impression is that a lot of harassment comes from some of these folks.