Q: The Age old question: When to start? A: As soon as you bring your pet home! Your puppy is learning 24 hours a day, 7 days a week. It makes sense to teach proper K-9 etiquette before it learns undesirable things on its own. It’s easy to think your pup is trained when it’s young. He comes OK and never wanders far. As he matures, he becomes more and more independent. When you come home to the new pup aren’t the two of you happy to see each other? Great feeling, huh? Pup jumps with joy, yips and plays, licking you all over. Now imagine this scenario with an adult dog. Nice clothes? Visitors? Your pet is only doing what pleased you before.