Angel, you seem like a real nice Lady, one who is in charge of Her own Life.
But, thank goodness you did not use that 40 caliber, or even threaten someone with it. If you had used it, your life would have changed forever, and not in a good way.
In no sane society is shooting, or threatening deadly force against an individule, considered lawful conduct over an arguement about payment for any service, whether it be a stolen case of beer at a store, or stolen service from a Provider.
That being said, I believe that any piece of sh-t that would treat a Lady is being described here is just that, a piece of Sh-t.