One other aspect to consider when showing a weapon is even if the other is the aggressor and has a knife, bat, club, tire iron, etc....and whether he withdraws or you do....butt hurt perp will often call the cops and claim you were a crazy man brandishing a gun and he barely escaped with his life.
Whoever gets to the cops first with the best witnesses usually wins unless one party is socially favored over another.
Right! That's what I was taught, with good examples to illustrate the point.
So (at least in Ohio) you can't use your firearm to diffuse a situation, only to shoot.