The Reliant Park World Series of Dog Shows is back in town this weekend, marking 31 years of the beloved canine competition. We can't think of a better or more enjoyable way to spend a hot Houston afternoon than inside the Reliant Center watching some fine canine athletic competitions. Less strict and far more fun than its stuffy cousins, the Reliant dog show offers events such as flyball, agility and obedience, doggie dancing competitions and......