We got a new puppy. She is a rat terrier. She was the runt of the litter and is very small for her breed. She is mostly white with an all black head. She has little black and brown polka-dots all over her back. We named her Pixie because she is so small. When we first got her, she could fit in one of my hands! Now she is bigger and more annoying. She likes to bite my fingers until she makes me bleed. My other dogs don't like her very much. She likes to bite them, too. They don't respond very well to this. They bite her back and run away.