When you educate people about putting up proper legal signs to ban you from entrance you remove your defense to prosecution when they put up a legal sign. That was my point. They don't want you in with your self defense tools, don't make it easier for them.Thank you for the link(s).
In the specific case I described, I was more interested in potential penalties. My Son who is a LEO, was also there, well-armed, and a much better shot than I, anyway.
As I live in a very small town, often the business is the ONLY one of its kind convenient to me; and, I seek to educate, b/c the more who actually UNDERSTAND, the better off we'll all be.
leVieux