While waiting for my flight back to Singapore at the New Delhi airport a few years ago, the announcements were replaced by people singing in real time.
I walked up to a sales staff behind a counter to ask what was going on. Was there some kind of festival today?
Looking embarrassed, she explained the office where the announcements were being made had been hijacked by some passengers who were fed up with flight delays.
All I said was, “I see… well, that makes life more interesting.”