That probably varies, depending on the individual and their history and their mental state, etc. There are no hard and fast rules.
I think the average sane person is less likely to take aggressive action against someone who is armed than they are if someone is not armed.
For example, over the years, as I've travelled unarmed at times, in a suit and tie, and I've had to stop someone for reckless driving, I get a whole different feeling from the person I'm dealing with than if I were standing there with my uniform and my gun on. They want to challenge you much, much more because they suspect you're not armed because you're in a suit and tie.