Michael Schaffer is the author of "One Nation under Dog: Adventures in the New World of Prozac-Popping Puppies, Dog-Park Politics, and Organic Pet Food." He tells Anne Strainchamps he didn't want to be one of THOSE people who take excessive care of their pets, but found himself realizing that the line between normal and extreme has made a major shift in our culture in the last fifteen years. Pound puppies like Schaffer's St. Bernard, Murphy, are the big winners and Schaffer thinks it's a good thing.