How to use Feng Shui to punish someone who maliciously hangs a mirror deliberately facing other people's doors?

It’s very simple. You buy a convex Bagua mirror, which should be available for sale, and then hang it quietly on the back of your door (that is, hang it on the inside of the door without hanging it on the outside, and then make it convex to the outside, that is, The back side of the Bagua mirror faces home). Then, if you think it's not enough, just make a 2CM high threshold inside the door of your home. This way in Feng Shui, your home's terrain will be higher than theirs, and you can overpower them. There is no disadvantage in doing this, because the first opponent doesn't know, so he won't continue to harm you. Secondly, this incident also started because of them. At most, you are just defending yourself. Both emotion and reason prevail!