"Undercover detective" joke

A tourist asks a man in uniform, "Are you a policeman?"
"No, I am an undercover detective."
"So why are you in uniform?"
"Today is my day off."

A police officer, though scheduled for all-night duty at the station, was relieved of duty early, and arrived home four hours ahead of schedule, at 2 AM.
Not wanting to wake his wife, he undressed in the dark, crept into the bedroom, and started to climb into bed. She more...