Dog Who's Always Welcome

If you''re like most dog owners, you want a trustworthy companion you can take on family vacations, to ball games, on hikes, and to cafes and festivals. You want your dog to behave when you have guests, stay peacefully at hotels, ride calmly in elevators, and maintain proper doggie decorum in all kinds of situations.

Chances are, you''ve watched and admired assistance an...