If you suffer from a condition called misophonia, the sound of certain annoying things (like humming, whistling, a fork scratching on a plate, etc) can drive you crazy.
If you were ever in a band and had a big enough P.A., then you had a sound man. Well I'm guessing there is a sound man Heaven or Hell when time runs out on old sound guys, but when they are still on this earth they are just like the rest of us and just get old and crabby...