The discussion about movie quotes has brought this to mind: the 2002 Beltway Sniper situation.
The person in charge of the investigation would say "caught like a duck in a noose" on camera.
At the time, my husband and I thought it was the strangest thing. Like code.
I just looked it up to try to remember more about it:
CBS News:
What does the phrase "caught like a duck in a noose" mean to the sniper?
Authorities are not revealing the context in which the sniper - if he is indeed the author of notes left for police - asked them to publicly say: "We have caught the sniper like a duck in a noose."
Police Chief Charles Moose read that sentence aloud late Wednesday night, as part of his latest message to the sniper, adding: "We understand that hearing us say this is important to you."
Link:
What's The Significance Of Cryptic Message?
www.cbsnews.com