Dogs Gods by Tim Flach | The impact of cosmetics. Yorkshire terriers were originally bred to kill rats, and had to be brave and aggressive to do so. But their owners soon began to organise beauty contests, too. Now, it takes many hours of grooming to prepare a showdog like Honza for competition. A hairdresser usually travels with her. While waiting to go into the show ring, her hair is bundled into packages to keep it clean and ensure it lies perfectly flat.