allaround, you will find attitude is the first and most important tool in your defensive tool box. No fair warning, no squaring up against your opponent, no talking and knife, gun, pointy stick, golf club, mop, can of hairspray or tennis racket it doesn't matter. Take cover and call for help if possible or attack attack attack and don't stop attacking till you see the back of the head of your opponent leaving your house in a hurry or laying on the floor face down.
Boogermen don't come to fight and really dislike noises, bright light and resistance.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.