I think there was a thread a short while ago that discussed what to do to defnd oneself against a dog attack, begun by dweste IIRC.

And IIRC, one dog was not considered a big worry by many. If you send your dog, that is your family pet, out to protect your personal property, you may be more upset at losing your family pet than you would be at losing something else.

I know someone that used to go on board ships, some from a terminal in Brooklyn. There was a point in time that you needed to have the guard take you to the ship because the terminal was guarded by dogs. Then it was no longer needed, because someone stole the dogs.