Castle law at home and in your car, so the bad person that wants to harm you or take your shit.......is probably going to the morgue. Ohio not having a stand your ground law doesn't do us any favors should we need to use deadly force, of course stand your ground doesn't always protect you either. Choosing to shoot, not shoot, or brandishing your weapon are all scenarios that each has an outcome, you just hope that the right one is chosen. The victim isn't always the victim unfortunately, thanks to our sometimes tainted judicial system and messed up "gray area" state laws. So I think the advice and reason for why my CHL instructor said 20 feet or less, is pretty sound advice. Most attacks are up close, fast, and way too personal, so good marksmanship beyond 20 feet is pretty much not needed.