Most dogs I've owned were gentle.I've had dogs that scared people due to their size,but they were really lap dogs. My favorite one was a female Bull Mastiff. Gentle as a lamb.A funny story when my wife and I were dating,my wife to be was sitting beside me.Ginger looked at her,got behind her and pushed her off with her feet! I also like hounds,never seen a bad one,always friendly.Golden Retrievers,great dogs. Collies are gentle.So far I would rule a Golden Retriever to be the friendlyist dog.What would you say?