What are the disadvantages of the back window of a building facing someone else's roof?

Hello, I'll answer you back and forth: it doesn't matter if someone else's roof is flat. If it is a spire, it is a "cornice evil spirit" in environmental geomantic omen, also called corner shooting. Generally speaking, the corner shot is a big killer, which damages the main wealth and kills people. The corner on the left is not good for the male host, while the corner on the right is very harmful to the female host, and the economic and spiritual life of the family is greatly damaged. Its harm degree ranks fourth among the top ten environmental geomantic omen. It is suggested that the landlord solve it as soon as possible. Here, for the landlord's reference only: please hang a gossip mirror (diameter 10 cm, made of copper, opened by professionals) on your window facing the roof of that house to ensure the safety of the landlord's family.