Used a shotgun, not a handgun, but I had my S&W Model 19 with me.
I used to love to run around the mountains with a long arm and a sidearm and just pop at targets of opportunity... a rock here, a pine cone there... you know, in the good old days of freedom.
Wanted to test out some handloaded 3" BB goose loads for my 500 for functioning and pressures, was wandering around some distance off Sugarloaf Road along a ridge, and crossed a power line clearcut that came up from the valley below, crossed the ridge, and went down the opposite side.
Just minding my own business, looking for a place to blast away with the shotgun.
I was standing there enjoying the view from the ridge, when all of a sudden 5 or 6 loose dogs came running up the clearcut at me, barking like mad. Scared the heck out of me. I mean they were not just saying "hello."
I remember thinking that I only had six shots in the revolver, and my best chance was with the shotgun, even though it was plugged for only 3 three inch shells in preparation for goose season.
Popped the lead dog with that 3" magnum, he rolled, and the rest kept coming. I dropped the next one and they finally stopped and sniffed around the dead lead dog, and went back down the hill. They had got within about twenty yards of me.
That was a scary one. I was ready with that third shot and fumbling with the strap on my holster.
Don't know if they were feral dogs or what, but while driving out, I noticed a mine shack at the bottom of the clearcut that looked like it was lived in... maybe they were their dogs, but I don't care. One or two dogs, well, I wouldn't like it, but I wouldn't have been that scared.
And I didn't even feel the recoil or hear my shots, or remember pumping the action, yet I clearly remember seeing the lead dog roll, and hearing the second dog's quick "Yip" when he was hit and fell over.
I didn't realize that until later, on my way back down Boulder Canyon.
I figured out later on that when you are pulling back on the shotgun's forend, the recoil will unlatch the action against the pressure you have on the gun's forend, and the gun will shuck the shell out almost all by itself.
Maybe that's why I didn't remember working the action.