Cats long ago became the most popular pet everywhere in America — except in our veterinary offices, where they still trail dogs when it comes to getting the care they need. (In the weeks to come, I'll be writing more about how that can and should change.)Why do we love cats so much? As the saying goes, “Cats rule, dogs drool.” And that got me thinking about some of the reasons why we love cats, including five very tongue-in-cheek offerings I hope will amuse. All are offered with respect and admiration for our feline friends, of course.