Once had a screwed up headphone system in a bus coming out of Greece for Canada, (via Shannon). Since we were augmented crew, went in back to try to help reboot the entertainment system. Finger slipped and the auto announcement (in Arabic !!
) from previous AC owner starts up. (we never used this system).
Slight sense of humour failure from pax !!!.
This was 2 weeks after 9/11 .
I spoke to maintenance, and they removed the CD with the recordings on it. (they found 4 ac with same)
Found that prayer time sounded really spooky if you didn't know what it was.
So,-- It happens everywhere.