A Junior High School teacher told his students that their parents had to sign a letter renouncing their citizenship as part of a lesson on the Declaration of Independence. And there were actually some parents who did it:

Bidwell Junior High School administrators said a letter sent home with students in an eighth-grade class Tuesday was a good idea for a history lesson, with bad execution.
The letter, which appeared to ask parents to renounce their U.S. citizenship, prompted phone calls to the school from several irate recipients.
[…]
He concluded the letter with “After careful consideration of the facts of our current situation, I have decided to announce to everyone that I am no longer a citizen of the United States, but a free and independent member of the global community.”
“The point was, I wanted to ask parents if they would sign such a letter if conditions that existed prior to the Revolution were happening now,” he said. “I just wanted to start a discussion.”
[…]
Chico resident Michael Hill said he was told by his daughter, Kaytlen Hill, 13, that the assignment was to have parents sign the letter and return it to class Wednesday.
“The lesson being taught in class was that the U.S. kidnaps innocent people and takes them to Cuba, where they are kept indefinitely and tortured,” Hill said he learned through his daughter.
When Hill asked her if Brooks mentioned Guantanamo Bay, Cuba, where the U.S. imprisons terrorist suspects, he said his daughter replied “yes.”

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Hill sounds like a pretty smart guy, he did what I would have done, removed my daughter from the class. I wouldn’t have allowed her to be taught by some moron who abuses his position for political purposes.