Oh hell that's just Charles. He greets everyone like that and has not shot at anyone in over 2 years. Offer him a beer and he will tell you about the 8 pound pike he caught.
Going on the offensive when someone has a gun pointed at you was a bad move. You walking down and interrupting him in the middle of his conversation family room or not might have just set off a nerve.
I would have a talk with him offering some kind of settlement item like a beer or food. You will be there for a few days and don't want it to be ruined focusing on one bad encounter.