When I was being prepped for the anaesthetic, a machine was hooked up to me so the could see that I was doing fine.
Obviously I couldn't help myself, but had to say:
Ah, I see you have the machine that goes Ping :)
The guy who was preparing me was quite amused by that, 'cos he had given up on saying that to people because very few seemed to get it, and here comes a foreigner who says it.
We then had a chat about british comedies until I got some good drugs in my system.