The Havanese is the best type of dog to be a friend to humans, with a high level of intelligence, understanding at a glance, and very attached to its friend. It is the best psychological treatment for humans, playful, loyal, not annoying, clean, and easy to train. Within five days, it knows its designated bathroom spot, and after that, you won't notice it; it will be the one to alert you when it needs to go. Its size after adulthood is small, slightly larger than a cat. Age: one month and a week.