I open carry in Washington because it does make my life more peaceful. Like Mainsail, I have open carried in the worst parts of Seatlle, the most crowded parts of Seattle, inside SEA-TAC International airport. No problems. This is why it makes my life more peaceful....
1. You are a criminal waiting outside a bathroom in a city park waiting for someone to go in so you can pop them in the back of the head and take their wallet. Are you going to pick the only guy in the park visibly wearing the gun who is known to have the capability to not only kill you, but also draw a lot of attention if even on gun shot is fired? Or are you just going to wait for that guy with the gun to do his business and leave and pick on the remainder 99.5% of potential targets not carrying the gun?
2. There are much, much easier ways of getting a gun than taking it from Joe Citizen carrying it. Average criminals are just going to buy one or have someone buy it for them. Hardened criminals are not going to mess with the armed guy because they don't want to get caught and it is much easier to just mess with the guys that aren't armed and to steal the money to buy a gun. They didn't become hardened career criminals by making stupid decisions.
3. People who like to rage, like road ragers, typically tend to shut up as soon as they see the gun. You know, you get to that parking spot at the mall, and someone else thinks they should have gotten it, so they are waiting for you to get out of your car so they can give you a piece of their mind that they probably need to keep for themselves anyway.... the gun tends to make them much calmer when they see it.
4. It actually keeps me calmer. When I think I might want to confront someone about something, consideration of the gun either causes me to decide to not confront them, or I might confront them in a much more polite manner than if I wasn't wearing the gun - like if they park in a handicapped spot without a handicapped tag.
Like Mainsail, those are my REAL WORLD experiences rather then unproven theories. The biggest negative hassles I have had have been with the concealed carry only people who can't resist telling me that they carry concealed and that I should too. My 16 year old step daughter likes to respond to those people with, "He isn't a criminal, he doesn't have any reason to hide his gun."