animal gives can often make it enormously disrespectful, ungrateful, and wrong to treat it as having no more than an interest in ... My Yorkie may not know he is doing me a favor when he greets me joyously at the door or when we play fetch with his little toys. ... He ought to receive attention, the opportunity for exercise, and good nutrition so that he can have his happiness too. ... The need for further work on these suggested considerations does not argue against the considerations.