So you should have a dog, not a cat.
1, let's talk about black cats. Pure black cats are born psychic. That is to say, black cats are more sensitive to negative substances than other cats, and it is easy to find so-called unclean things. In the world of negative materials, everyone will feel and be interested in negative materials. Black cats with more negative effects may attract negative energy nearby or passing by. If negative substances interested in black cats can't be taken care of by black cats, they will be driven away. If you don't come, it's not only the black cat that is unlucky, but also the owner who owns the black cat. Similarly, lightning rods are not used for lightning protection, but for attracting lightning. )
2. Let's talk about the black dog again. Dogs are positive and have no interest in negative substances at all. Similarly, negative substances are not interested in dogs. What's more, the black dog's blood in the black dog's body is a magic weapon to break the yin, and even witches with evil spirits are afraid, let alone other wizards.
Finally, if you want to see negative substances, you can get a black cat, maybe it will surprise you.
If you just want to live a safe life and avoid negative substances, get a black dog.