Every cat thinks it is the master of the universe, and that is precisely what makes them so endearing to so many people. They skillfully wrap us around their little paws as they brush against our legs, telling us to please hurry up and fill up their food bowls. They sprawl across our computer keyboards, purring loudly while we try to finish that important letter to the IRS. Whom else would we forgive for artfully shredding our expensive designer sofa, refusing to sleep anywhere but the head of the bed, and decimating the backyard bird population? A proper cat has its (human) can opener firmly...