You know your dog has a lovely personality. She's smashing at home - loves playing with the children, does what you ask, settles quietly when you're busy. But outside ... or perhaps when visitors come ... you have a different dog. The ruckus she makes when confronted with a strange person, a strange dog, even a strange bag, is upsetting for you and frightening for everyone else. She ducks and dives, lunges and surges, barks, snarls, and growls: who...