I think the problem with this question is that if you are ever faced with a situation like this you will almost certainly have no information about the other person or very little. They could be one of the most dangerous people in the world or a petty criminal. Because of this you would have a very hard time determining the real threat to you or your family. Given that situation I think it would be best to assume the worst or something close to it and defend yourself and family as much as possible.








