Musing a bit really. I grew up with large dogs and my ideal would be something absolutely enormous. I have no issue with slobber, personal space etc. But - we were dogsitting this weekend and I got a little taste of how the usually docile and certainly not very large terrier x whippet cross I was walking almost ran me into the road when she spotted a cat. If you have a huge breed presumably it is lots and lots of training to keep them under your control, since they could physically drag you wherever they wanted?
Can anyone give me a clear picture of how much training and at what ages, for a larger dog?