I live in one of the green counties on that map. I know plenty of people who have concealed carry permits. It'll be easier for me working at the prison and doubly so in light of recent events.
As far as the legal ramifications, yes I'm aware of those. However, dead men tell no tales, and if it came down to a case of self defense in which I absolutely had to shoot, he'd probably end up dead.
Tosh, there may be some things I don't know about him, like perhaps he really is an unstable nutjob. I am looking into additional home security. I figure a couple of wireless web cams will give me coverage for the two sides of the house exposed to the street and I can mount a wired one in my office window to cover the driveway, rear enterance, and garage/patio area and set up my desktop to record at 1/2 second intervals when motion is detected.