Bob Herbert in the New York Times:
In January 2008, a 5-year-old kindergarten pupil became unruly at a public school in Queens. A public safety officer, seeing her duty, pounced. She handcuffed the boy who was then shipped off to a hospital psychiatric ward.
Just last month, a 12-year-old girl at a junior high school in Queens was arrested for doodling on her desk with an erasable marker. She was paraded out of school in handcuffs and taken to a precinct stationhouse.
And much, much more.
Think of those instances next time your knee begins jerking and your lips start saying platitudes about how heroic cops put their lives on the line each day.