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It doesn't matter. The opposite side may care about Feng Shui. If you are really serious, you can ask the master to come to your house to have a look.
Feng Shui is not clearly described, and who can say how to deal with this problem can only be said to be nonsense. Feng Shui Feng Shui requires on-site surveys, combined with your eight characters.
It won't affect you in any way.
Buy a gossip and take those things back!
Inviting a bodhisattva has no effect on you at all, and Buddhism does not have too many taboos. Most of the so-called taboos are folk beliefs, and most of them are false. Rest assured.
It won't have an impact. Feng Shui is the relationship between sand and water, and this so-called copper coin cannot be shaped into sand at all.
It's okay, but it's better to let him change positions if he can change them.