I'm probably one of the few people who have been known to listen to channel 9 (or 14 on the B747-400) for the entire duration of the flight. I've heard some pretty wierd and interesting things on it over the years, and last night was a different one... It went something like this:
Some flight (I forgot the number): Center, (callsign), do you have traffic in front of us?
Center: Uh (callsign), no. Do you?
Someone else: Shooting star.
Flight: Oh yeah, that must've been what it was. Just caught it out of the corner of my eye.
Center: Don't scare me like that...