Memo to Scotland: Here is how we do it in the USA.Gun toters halt robbery attempts
Note that these are two separate self-defense situations in the Detroit area. The piece is from the Detroit Free Press.
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"Farmington Hills police said a 32-year-old Novi woman, who had a permit to carry a small-caliber pistol in her purse, stopped a man armed with a 9mm semiautomatic handgun from taking her $40,000 diamond ring and Rolex watch.

"Police Chief William Dwyer said the woman, whose name was not released, was in the parking lot of a business at 12 Mile and Drake, where she worked in the accounting department, when a man confronted her Friday morning.

"When he came within about 10 feet, Dwyer said, the woman calmly pulled the gun out of her purse and pointed it at the man -- identified as Carl Walker, 21, of Detroit.

"Walker did not draw his weapon, police said. Instead, he ran to a nearby car and the woman called 911. Police later arrested Walker and recovered a pistol. Two companions, Monique Bell, 26, of Detroit and Daphne Patterson, 28, of Southfield, also were arrested."
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" Two other men -- a father-son team accused of trying to rob a 65-year-old retiree -- are expected to be arraigned this morning in St. Clair County.

"The men already had robbed one woman before being stopped by the home owner's bullet on Friday, police said.

"The Ft. Gratiot Township home owner answered his door on Keewahdin Road about 8 p.m. and was accosted by a 20-year-old Worth Township man armed with a handgun. When the young man's attention was diverted, police said the home owner grabbed his own .38-caliber handgun and fired.

"'The round ended up coming out of his buttocks, so I'm sure he'll be thinking about that old man every time he sits down for a while,' said Detective Lt. Mike Bloomfield of the St. Clair County Sheriff's Department."
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See, this is what I call privatization. You take the law enforcement function and you break it down to the individual level, where the individual citizen is trusted with having enough good sense to use force only when and to the extent that it is warranted. Contrast that with the Scottish/British approach, where you have to depend entirely on the government. In other words, self-defense is fully socialized. If they aren't around when you need them, and of course they hardly ever are because crooks don't generally commit robberies in front of police officers, you are supposed to...do what, exactly? Curl up in the fetal position and beg the criminals for mercy?