Dog training type: Puppy Training, Family Dog Training, Manners Training, Obedience, Behavioral Modification. Dog behaviors: Housebreaking issues, Aggression towards dogs, Aggression towards people, Barking, Biting. Dog age(s): Puppy - 6-12 months. Dog size(s): Small (1-15 lbs). Number of dogs to be trained: 1. Dog breed(s): Chihuahua. Type of training: Private lessons.