I spent 36 years in law enforcement. This year I had the unpleasant task of attending the funeral for one of our officers shot and killed in the line of duty.
I guess I have a pretty poor opinion of mankind in general. Still Madison makes a good point I believe the vast majority of time you can avoid a confrontation by not being part of one. It normally takes too to tangle. Don't let it get that far. Let it be you to just walk away. There are those rare circumstances when you can run into the person who means you harm. You can also be involved in the far more likely incident of a serious crash. I hear a lot of talk about being armed and everyone thinks they are prepared. I can't help but think carrying a firearm gives most people a false sense of security. Enough said. I am retired and really don't mean to participate on this site for such talk. Let's go fishing!