I think you missed the point of the article. It was about what can you use in places where there are no guns, or at least where guns are not allowed. Like you I take my gun everywhere concealed so that no one knows I’m carrying. I go into places fully armed with signs that say no guns allowed (gun free zones) because they will never know I’m carrying unless a gunfight breaks out. The worst thing they can do if they suspect, or discover, I’m carrying is ask me to leave. The article was all about an alternative if you have absolutely no way of carrying a gun. My examples were real life experiences as I was born in England and have friends there I like to visit. I always take a tactical flashlight that I’m fully trained to use as a serious weapon. I used to take a Kubaton with me with keys on it, another great weapon that requires training, but TSA and Police departments got wise so they don’t allow them anymore. There’s even a tactical pen that is a good weapon, but they don’t allow those either. BTW you can’t out run a bullet so good running shoes won’t help.