Hurkyl said:
Have you considered not driving through pea soup? You're very lucky, not just that you avoided this guy, but also that you were fortunate enough not to encounter someone else silly enough to drive through that, but opted to drive at a more reasonable speed (a back-of-the-envelope calculation suggests that even 15 mph is probably a little too fast) -- I don't think you could have stopped to avoid him even if you slammed the brakes instantly upon seeing him.
(Are you sure it was only 30 feet of visibility? That amounts to half a second between seeing something and running it over)
Honestly, i didn't measure it precisely, but it was very bad conditions and I think visibility was not much more than that. You can probably estimate of the distance of visibility based on typical human reaction time. I know the speed was 40 MPH because I deliberately decided to go 5 MPH under the speed limit when I turned onto the onramp. I'm convinced that I responded just about as quickly as a person could in those circumstances because, in those days, my reflexes were better than average and my eyes were deliberately focused forward looking for taillights or objects in the road. The idea of a person being in the road never crossed my mind, since it was a 2-lane highway, at 11:00 PM, with a chain-link fence separating it from my Mom's residential area.
This happened about 15 years ago, and I've been more careful since then. I often ask myself, what are the odds that a person would walk down the middle of a highway lane in those conditions? In all my years of driving in any conditions, I've never seen anyone else walk in the direction of travel down the middle of a highway lane. Visibility was bad, but not so bad that he should not have been aware of where he was. But, stuff happens I guess. People get drunk, or have mental illness or want to kill themselves. I don't know what was up with this guy. I thought to go back and check, but then decided that was even a more hazardous thing to do.
Anyway, tying this back into the theme of the thread, I can see the point people are making about how a scare can change behavior. However, what bothers me is that the particulars of the technique seem to generate something hazardous in itself. In my case I learned a good lesson, but the lesson was learned at great risk. It seems unethical to me to deliberately create this level risk to teach a lesson, even if it seems the overall harm might be minimized by doing so. I know the stakes are high here, but I ask myself, which scenario would enrage me more?
1. My daughter is hit and killed by a careless driver going 5 MPH over the speed limit. (note I'm extremely enraged if this were to happen, and I live the rest of my life in total despair, in my home.)
2. My wife and daughter are killed when my wife swerves the car off the road to avoid a painting of a girl in the road. (note, now I go postal and kill every politician in my town, before living the rest of my life in total despair, in my jail cell.)