That's the problem with meth heads, you have no idea what they want. For all you know they think they're being chased by some 4 headed monster and are fighting for their life. One thing about druggies going through a psychotic episode is they can be strong as hell with all the drugs and adrenalin going through them. So yeah, if he's trying to get in your car he very well could hurt you. That's threatening enough for me to start blasting. I'd think the law would agree with that too. Doesn't matter if he's armed or not, hell he could start biting or scratching you, use something in your car as a weapon, etc. If you feel like you're in immediate danger you're good to go.I have no idea if he was armed or not, considering he was about half naked and I saw nothing in his hands I'd say no. So lets say he was successful in opening a door and doing god knows what, I am assuming he was looking for a get away car...is that reason to start blastin? I felt threatened enough as it was, but couldnt imagine what the guy in front of me was going through his head.