My Dad had a Colt 9mm Commander he carried around for a while back in the 70s and 80s when he ran a couple of pool halls. He also owned a string of those bingo pinball and video poker machines in about a dozen bars around town -- none of them in particularly safe areas -- and he liked to have the Colt with him every week when he went to "rob" his machines.
I don't believe he ever had to use it, but I do recall he came home with the rear window of his car shot out one night.
When not riding with him the Colt occupied a dresser drawer, and I would watch him on a couple occasions as he cleaned it. He wasn't much of a gun aficionado, and though he had about a dozen pistols and long guns he tended to prefer his revolvers most of the time. For many years during my youth he had a couple of automatic shotguns hanging in a gun rack in the den, along with a Walther P38 and a Ruger Blackhawk in display boxes on the wall.
Though he never took me shooting that I ever recall, I asked him for the Colt when I turned 21, since it had always fascinated me. He's given several of his guns to friends since, and I wish I had gotten interested in guns sooner than I did because he had some fairly nice pieces.