Without X-ray vision, I cannot say with certainty what goes on in the apartment above. I can only speculate.
The tenant’s noise-making cannot be eliminated entirely, of course, but confiscating his pogo stick, restricting lessons for cloggers to midday only, and impounding his pet elephant might be a good start.
John H. Dromey’s short fiction’s been published in Mystery Weekly Magazine and over 150 other venues.