BartSimpson BartSimpson:
I had a neighbor like that when I was a kid. Ran the stereo at ungodly volumes day and night. Then he got a night job and started complaining when I'd mow the lawn at 8am because HE wanted to sleep and HE needed it quiet.
I checked and found it was legal to start using a chain saw at 7am.
For several weeks before I'd go to school I'd be sure to get up and warm up my McCullough 360 'just to make sure it was working'.

My Mom's neighbour's kids used to play rap music (with the bass cranked up) all day long in the summer and it drove her nuts. She asked both them and their parents to turn it down just a bit, but they never did. So she waited until they had a 40th birthday party for the mother one lovely day and went outside, started her lawnmower, cranked it to full throttle and parked it right next the fence. She left it running for an hour, then came out, topped up the gas tank and left it running for another hour. They came over to ask her to turn it off, but she said, oh so sorry, I have to cut my lawn and slammed the door in their faces.
After that, the kids always played their music much quieter.