Why are the neighbors at the top such idiots?

I sit in the net at night. There is silence throughout the house. Suddenly I hear the scream of the bed above. Clear and louder and louder. A while later there was silence. Well, I think they smoke. A pleased man’s voice:
How are you, my shit?
A woman’s voice laughed and replied:
What a shabby, yeah shabby.
and pause. The sound of blow.
I sit under the table in a crash.