Originally Posted by
photogravity
Not always... The next door neighbor's boxer took three bites out of my wife about 6 weeks ago. Animal Control took possession of the dog and observed it for a period of time and then euthanized it because of its temperament.
Not all of them are so soft and cuddly. My wife, who has never been afraid of dogs in her life, is now afraid of dogs.

I concur. I have a pit bull mix and she's even friendlier than my Aussie. She'd kill an intruder with licks and tail wags.. Temperament and training has more to do with it than any in born "bloodlust."