This sounds like a win-win situation to me. OC or CC aside, if the man was a genuine threat or not, most reasonable people who see someone coming at them in that matter feels threatened. Most people can naturally tell if something is not right, the only difference between being a sheep dog and a sheep is Situational Awareness. It has nothing to do with having a gun or not. In this situation the handgun obviously was not an issue with those guys because they still approached in an aggresive manner. The difference was made when the OP decided to assert himself and project the combat mindset to the threat saying, i know you are coming, I am ready for you, this will not turn out well for you. In my job, 99 percent of the time the steely "Leroy Jethro Gibbs" stare is enough to deter a threat. Should the OP have needed to defend himself, I am sure he would have done so responsibly and ended the threat the best he could. Good Work!!