Calling the police is the most effective. The downstairs of my house has a terrible smell. Every day, a loud speaker is played at the door. It smells bad enough, and then there is noise all day long. I once discussed it with them. But the answer was: I put it in front of my store, not in front of your house. So I went back decisively and threw a flower pot from upstairs, smashing his stereo. He came to me to argue, and I also said that I threw it from my window, not yours. Down. Later, he learned a lesson and put the stereo inside. It was blocked by the eaves and I couldn't hit it. In fact, the most important thing is that I don't have so many flower pots in my house. So I had no choice but to call the police. The first time, he stopped for two days, but started again two days later. I called the police again, and he stopped for a few more days. Until the third time, the police became anxious and told If they open it so loudly again, they will call the industrial and commercial authorities to close the store. Later I learned that there were more than 30 calls to the police, and I was not the only one to make them.