Cats have distinct personalities unique to each individual feline. Cats do have mood swings like humans. How else can you explain their weird and peculiar behavior? Do you know why your cat stares at you? Or why do they feel happy shredding your precious drapes to tatters? Cats have developed “symbiotic social behavior” over thousands of years with their human counterparts. Once you bring a cat into your house, your house doesn’t belong to you anymore. The house belongs to your cat.