Lily: Um, sweetie, why is this book in here?
Marshall: That's Enigmas of The Mystical. It's all about mysterious and unexplained phenomena. Don't you remember the TV commercials from the '80s?
[a TV commercial:]
Announcer: June 17th, 1983. Tempe, Arizona. A woman makes a chicken salad sandwich.
Woman: Chicken salad sandwich.
Announcer: Halfway across the country in Michigan, her daughter is compelled to make almost exactly the same sandwich.
Woman: Tuna salad.
Announcer: Coincidence? Or an enigma of the mystical!