In the beginning, it was the noise that people made. Started out with music, so we started using headphones. Then it was talking, so we reduced that by closing doors and such. Then it was how we were talking, especially the people in the kitchen how have a colorful vocabulary. Then it was kids running through the hallway in the afternoon. That's then I drew the line.

Now, it was only "vibrations", probably caused by our kneading machine. When I put my ear to the wall and concentrated, I could feel it. So I isolated the kneading machines with mats. Gone. We'll see if they shut up now, but my suspicion is that they want money and a scapegoat for their what their life is like. Everything has to be someone elses fault.