While I certainly don't like comments of the run-them-over type, I try to let them just pass as expressions of annoyance and nothing more. We've all fantasised at some point about doing something mean or vicious (surely it's not only me... ) to people we really dislike or in situations that we hate. And when talking with people who agree with us it's not that unusual to voice those fantasies either.

I did get pretty scared though when I read a blog with a girl bragging about how she had intentionally run into a cyclist a while ago, to teach him a lesson. There are a few people who will purposely endanger cyclists, but I'm pretty sure not by far as many as those who want to talk about doing so.