Another excerpt from Correia's post

Think about it. You are a violent, homicidal madman, looking to make a statement and hoping to go from disaffected loser to most famous person in the world. The best way to accomplish your goals is to kill a whole bunch of people. So where’s the best place to go shoot all these people? Obviously, it is someplace where nobody can shoot back.

In all honesty I have no respect for anybody who believes Gun Free Zones actually work. You are going to commit several hundred felonies, up to and including mass murder, and you are going to refrain because there is a sign? That No Guns Allowed sign is not a cross that wards off vampires. It is wishful thinking, and really pathetic wishful thinking at that.
True, every word.
If someone wants to post their store or other business 'No Weapons' because they don't like them, so be it; you have the right to do that, and I have the right to take my business elsewhere. But please, don't be such a fool as to actually believe that your little sign will stop someone with evil on their mind.

Speaking of which:
Last night took son to a local Mexican place called Chileno's.  Hadn't been there in a while, so the big red 'No Guns' sign on the door was a shock.  I'm guessing they stuck it up after the open-carry law passed, which is annoying to say the least: no sign for all the years previous, and now this.

So I've written to them, asking why; we'll see what they say.  Under different circumstances I'd have taken him somewhere else upon seeing that.