Some years ago I was staying at a B&B in Haltwhistle (UK). At breakfast my wife and I seated ourselves next to a gorgeous old grandfather clock. I have a wall clock that needs professional service every three years, rain or shine, and this prompted me to ask the proprietor how often he had his clock serviced. He pondered this for a moment, then opened the clock and pulled out a receipt dated 1959. I was flabbergasted. "That's it?" He apologized and said that he gets in to the clock every couple years when he thinks of it and shoots it with 3-in-1. Now that's a good testimony.