The gun in this example is not real. Would that make a difference? Also its not nescarily defending property, its defendings ones self from somone who has asserted he wants to harm that person.
Heres the situation:
Bob is under the misconception that John has wronged him. Bob then goes to John and attempts to fight him. Bob makes numberous verbal threats saying that he is going to beat up John. Bob swings at Joe but is stopped by somone in the middle. Bob is asked to leave...