The Odd Habit This Former Spy Developed From Her CIA Training

Former clandestine services officer Amaryllis Fox is just about to release a fascinating new book.

According to Business Insider, "Life Undercover: Coming of Age in the CIA," is out Tuesday.

Even now, Fox admits her training left her with some unusual habits that won't go away.

Among them are keeping her back to the wall at restaurants to watch entrances and exits, and stopping at every yellow light.

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