Have always wondered this and I'm honestly not attempting to be goady. Do you ever wonder about your dog - particularly a large breed - turning and biting you and causing damage to you or your kids? The idea of this would terrify me and is one of the reasons we'd never got a dog. Do you always know what they are thinking when they are looking at you? That's something else I've always wondered about. Or do you feel you know a dog after you've been living together for a period of time?