Do you have any pets that behave like people? My sister has two cats, a male and female that have like a love-hate relationship. One minute they take turns licking each other. The next minute one will bite the other and a fight breaks out. They chase each other through the house, knocking stuff off the tables. Then there are moments when they just seem like they don't care to be bothered with one another. They do have special moments when they lay up under each other and fall asleep. If that isn't like real people, minus verbal conversation, I don't know what is.