Stereo Road Rage
In the rush of a Black Friday morning in 2012, a 62-year-old man took to the roads. He'd already stood in line for five hours at Wal-Mart to buy his grandson a stereo, only to discover it was sold out. So, he drove his vehicle to another Wal-Mart in hopes of finding the coveted item still on store shelves.
Finding his route stymied by a driver who, in his estimation, was going too slow, he swerved back and forth, tailgated and eventually pulled alongside the other car. At that point, he pulled out a gun and fired a shot at the driver.
Unluckily for him, the driver of the car was a woman whose husband was an off-duty sergeant and happened to be in another car just behind her. The policeman pulled him over and arrested him. Grandpa's excuse for his hair-trigger actions? He wanted to "scare her into moving" [source: Fowler].