Lately, I've noticed this as more and more of an issue. My commute takes me on about 1 mile on a narrow, two lane, one in each direction road. I take the lane on this section because it is so narrow with no shoulder, and I have noticed many cars will pull out into the other lane to pass me with oncoming traffic no more than a couple hundred feet away. This amazes me as it always ends up with the oncoming driver slamming on the brakes and swerving onto the 4" wide shoulder, yet they never, ever honk or even seem angered by this reckless maneuver.
Logically, if you swerve into oncoming traffic, the oncoming traffic will get the s**t scared out of them, and will most likely be angered by the situation, so why does throwing a bike into the mix make it perfectly fine? Are people so stuck in the belief that everything is our fault? I know if I were a driver I would be laying on the horn each and every time.