My Yorkie died afew months ago, he was 18. they say ornry live long lives, and he was certainly that! Yorkies can be sweet little dogs, problem is, they don't know they are little! Max, ruled the roost, and he dominated our large lab! He had no fear and loved to escape our fenced in yard. He ALWAYS found ways out of the yard and traveled some times miles from home. He got beat up numerous times, one time so bad he had a punctured lung and his whole chest cavity swelled up he looked like a balloon! LOL! My vet swears he had 9 lives like a cat! She had to put a muzzle on him whenever he went to the vet, and liked to attack ankles when strangers came to the door. Their bark is more a shrill bark that can get on your nerves, but I doubt anyone would have tried to break in if they heard his growl on the other side of the door!
But he was an affectionate dog with the family, loved to curl on a lap or bed and snuggle, and I miss the old boy alot, even though he was high strung LOL.