I did hear once where some idiot tried to rob a gunshop with a police car parked out front...the shop owner, cop, and a custormer drew on him....I forgot which one plugged him.
or a few years back when the guy tried to rob a bar in Chicago that was one block from a precinct cop shop at 5:30 p.m.... walked in, fired a round from a shotgun and yelled "this is a stick up!!!"... he wuz dead a couple seconds later... not sure 'zactly how many bullets hit him but it was over a dozen...
Back when I worked at the Detroit Police Department, we'd sometimes wander over to Griswold Sporting Goods. They were the equipment provider to all the Detroit pro sports teams, and their second floor had a HUGH gun department. Most cops bought their personal weapons there because they got 10% discounts, as I did.
One day we were there drooling over the latest firepower. Some wino walks in, and pulls a Walther PPK from his pocket. Instantly two uniforms, three plainclothes, and three employees draw down on him. I was trying to flatten myself on the floor like a wad of bubblegum.
The bum, after placing the weapon on the counter and backing away with his hands behind his head, explained that he "found" it, and wanted to know "where the bullets went". The PPK was taken by the senior cop, where it was no doubt turned in to the gun room.