I just read about the passenger who refused to stop loudly singing an off-key rendition of "I Will Always Love You" during an American Airlines flight. She apparently worried the flight staff enough that they hand-cuffed her and had to make an emergency landing. Another passenger caught a secret cellphone video of her continuing to belt the song out as she was lead to the front of the aircraft in cuffs. The woman was not charged, and she claims that the incident was a caused by a bizarre diabetic episode, but American refused to fly the woman on to her destination and she had to make other arrangements.