A friend of mine delivers pizzas or extra cash. One of his co-workers was mugged last week. Apparently, as the guy was getting into his car, after delivering a pizza, he was jumped by a group of guys and had he crap kicked out of him. Now, several of the drivers want to get CCW licenses and start to Carry. Under many circumstances, I would think this was a good thing, but my friend is under the impression that carrying a gun would have prevented this incident. Carrying a gun does not have the ability to prevent all crimes.
If the driver was, in fact, jumped, then the driver would not likely have had the chance to pull his gun, or more likely would have tried to pull his gun and had it wrestled away from him. Who knows what might have happened next. If there is distance between you and the bad guy, the gun will be handy, but unless you are Jackie Chan, if a group of people are already beating your butt, it's unlikely your own gun will be of any value.
Situational awareness is a term the military uses for knowing where you are and what is around you. I am sure the pizza driver broke all sorts of self-preservation rules, such as: Maybe he was on his cell phone and not paying attention to those around him, didn't lock his car doors immediately upon entering the vehicle, or had the cash still in his hand as he was walking back to the car, etc. Watch your back, look around, and see what's out there. Chatting on a cell phone or texting is a huge distraction...don't do t until you are safely locked away in your vehicle.