Three crooks demand 69-year-old hand over his belongings — then get hard lesson on what happens when you mess with a concealed carrier

A mythical Chicagoan once waxed philosophical about the foolishness of bringing a knife to gunfight.

Well, a trio of bad guys apparently didn't have any pointed object — except possibly for their skulls — at their disposal when they approached a 69-year-old man Tuesday night in the Windy City's Beverly neighborhood on the south side and apparently figured they could get the best of him.

What the three misguided fellows didn't think through — like a growing number of slow learners up to no good on American streets — is that their target has a bit more life experience and probably possesses the smarts to know that Chicago is a dangerous city where it's wise to carry a gun for protection.