My next door neighbor liked to crank his stereo, all hours, day and night.
I tried politely talking to him- I even took him a case of his favorite beer. I explained about my shift work at the hospital, and all he said was "It's my stereo, I'll play it as loud and when I want."
I called and left polite messages on his machine. I wrote nice letters asking politely to keep it to a reasonable level- no avail.
Finally one day last month, he had it really cranked. I went over & beat on his door. When he opened it, I grabbed him By the shirt & pulled him on his porch. I showed him my gas can. I said it's empty now, but next time I have to come over because of your fucking stereo, I won't knock, I'll justy light a fucking match. He could tell I was angry, because I don't use language like that.
I've not heard a peep out of him or his radio since.

p.s. I really wouldn't torch him, but it was a threat that got through to him.