I am the owner of the Boston Terrier/ACD mix Shanon posted. Buckeye is her name. She weighs 30 pounds and has maintained that weight for over a year. She is very active, but not obnoxious (always on the go). She is playful, loyal, possessive, smart, sensitive to changes in her environment. She is quite cuddly and loving - wherever I am, she is too. I, too, come from the theory of you can't judge a dog by it's breed name(s). Perhaps I just got lucky, but I think it is also in how you raise them.