I, when I lived in the new building, on the 22nd floor, heard how on the 20th floor the sugar in tea (or coffee) was mixed! On 23, the neighbor narcissist was there, and his mushroom was constantly playing very quietly, and some of the compositions I liked were chassameled from the phone. A neighbor from the 21st floor came to work at 5.45. And they had sex, up to 5.50, then cries with morbidities up to 6.10, and at 6.15 she went to work, and you could sleep in silence. And on January 1, at 8.30 a.m., a fool began to hike with a perforator on the 6th floor. It was unforgettable. They almost shot each other. Beyond his floor - the neighboring apartments, was aware of all the conversations, even those that were a whisper! I have lived in a private house for more than 5 years, but there is still a residual phenomenon - listening to music in the headphones, and speaking in half a tone. And if the child screams - first thoughts for "neighbors", and then goes away.