I will never forget the day I went to my favorite Italian restaurant, sat down at my usual table, and a group of Indian swamis came in.
George the Waiter sat them at a table and brought out a large bowl of spaghetti.
Each in turn took out his recorder, played, and a spaghetti strand would rise from the bowl to the ceiling in a slender rope.
Over and over, the swamis made the spaghetti rise up.
I called over George, and said “Wow, isn’t that amazing?”
George grumbled. “Sure, it is, but those cheap bastards don’t tip for shit.”