How many times have we heard it? "The first rule of gunfighting is 'Have a gun.'"
Which is arrant BS. The real first rule of gunfighting is, "Stay the hell out of gunfights any way you can."
I have often expressed this same thought as:
The first rule of gunfighting is to have a gun, but the Zero-eth law of gunfighting is to be somewhere else.
The reason it is the "zero-eth" law is that it applies to private civilians. Police, Security, Military... they don't have a choice. In many cases it is there job to seek out the kind of trouble that could lead to a gun fight.
But for me... being somewhere else is even more important than having a gun.