I went along last Wednesday to an Oxford Skeptics in the Pub meeting, held in the COPA bar on George St. John Bradshaw gave a talk "A sheep in wolf's clothing?", which basically summarised his book In Defense of Dogs (published in the US as Dog Sense: How the New Science of Dog Behavior Can Make You A Better Friend to Your Pet).
A key part of his thesis is that dogs are not wolves. Both dogs and wolves are highly selected "remnant" populations, descended from a much more variable ancestral population not adapted either for life in harsh environments hostile to man or for life as a human associate.
So drawing conclusions about dogs based on wolf behaviour is dubious, especially since much of our thinking about wolves has been based on "unnatural" zoo populations or, more recently, on American timberwolves, which differ from Eurasian wolves.
He goes on to apply this understanding of evolution and behaviour to practical issues in dog training and management. See an NPR story on this for more details.
Anyway, it was a good talk and I am tempted to buy Bradshaw's book. I also plan to go along to more SitP events, though they seem to mostly cover atheism and medical quackery, which aren't always such interesting topics.