Pick up ten books on dog training and you'll
find ten different opinions: you should always eat before your dog; dogs should
never be allowed to sleep on your bed; you should always go out of doorways
before your dog; and, you should never let your dog walk ahead of you on leash.
That's an awful lot of "always" and "nevers." They all have
one thing in common: they're meant to teach your dog who's in charge…