German Shepherd who lived next door to our previous townhome was amazing with our two dachshunds. Occasionally the pups would sneak in to his house through a cat door and he'd just watch them as they stole cat food. But, when i went in to help the super attractive lady who lived there with some maintenance issue, the fellow would stand up, put both paws on my shoulders and not let me upstairs until she told him that I was ok. He wasn't mean about it. He was just doing his job of making sure i wasn't up to anything bad.