If you think that toy dog breeds are docile, pampered lap dogs, you haven't met the Brussels Griffon. Bred from terriers who excelled as ratters, the breed is charming, trainable and absolutely devoted to his people. He thrives on interaction, activity and mental stimulation. His small size makes him a good apartment dweller as long as you give him a chance burn off some energy. Your Brussels Griffon puppy will take easily to training, even learning tricks. He's extremely social and needs time with his family, so will be happiest in a family that's home most of the time.