There are some evil things in my family. Every year, my cat falls to death. How to solve it?

I don't recommend keeping a cat. Old people say cats have lives. I fell to my death. It's a little unlikely. Because cats that bark in the middle of the night will find something unclean. It is suggested that the landlord keep a pure black dog. First, the dog itself ward off evil spirits. Because unclean things are afraid of dogs. Besides, it's black. Well, that's better. The landlord can also buy an amulet or something.