Happens almost once a ride. My wife and I were riding this morning and a Suburban buzzed me about a foot away (and it was a 4-lane road; he/she had a full lane open to the left). I was a little ways in front, and when we stopped I asked if she saw how close that Suburban came. She said it did the same thing to her.
It's too bad that we have to put up with the danger and abuse, but what are you going to do, are you going to ride or not? If you let stupid/hostile/vicious people stop you doing stuff, you'll run out of stuff to do pretty fast. You just have to exercise the best judgment you can. When you're talking endoskeleton vs. exoskeleton it's not much of a fight.