I carry a gun as well. And I work at refining my shooting skills all the time.
However, that cane is not only in my hand and ready for action at all times it can go places the gun cannot, like airplanes, schools and courtrooms.
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"I am old, sick, and tired of living. If you feel the need to mess with me, go right ahead."
My Uncle, with his hand on his pistol (in his pocket), talking to a troublemaker.