I've got a neighbor like that. He hates noises of any kind, lawnmower, weed whacker, he even hates the sound of my factory bone stock motorcycle warming up in the morning. And he's one of those guys that likes to express his distaste for something so we've had a a few run in's with him. Just yesterday I was running up my Slick in the driveway getting it all dialed in when I saw him walking out in an uproar, yelling at me.
Of course I never bothered to shut down my engine, I was too busy trying to get the carb to close fully when I hit my kill switch. When I finally did get it shut down the only thing I calmly said to him was that he was making more noise than I was at that point, which prompted him to glare at me while he walked back.
Some people...