[PEC-Memphis]

Case law is important. There was a case in Colorado where a man was arrested and charged with felony menacing because he slapped his hand on his hip or his gun was under his jacket well he was arguing with the man about a debt that the man owed. He wasn't convicted but the amount of hassle that he went through was enough to make me very careful how I interact with people when I'm carrying a gun

Yes - and some lawyers will argue that (in the US) case law is functionally the only law. As case law is how statutory/codified law is interpreted - which may, may not, be the intent of the authors of the (statutory/codified) law. YMMV.