The demeanor and appearance of most Dobermans, Pit Bulls, and Rotweilers give me the willies. I personally have no desire to be around these dogs. I did once make the acquaintance of a very friendly Rotweiler in its owner's presence. The owner told me that the dog "liked guys" and that I could pet the dog. I did and could feel how powerful and muscular the dog was. Its claws were long and it scratched my bare arms just being friendly. I hate to think how much damage it could do if annoyed.
By the way, my black lab, a nine-year-old, will not let anyone near my children or me when my husband is away - he will growl and then bite if you get too close. It is your responsibility to know the nature of your dog - not just its breed!
That being said, ain't it great to have armed neighbors!
I'll see your Lab and raise you my Newfoundland water rescue dog. 160 pounds of pure muscle, we call her "wild eyed love" but I have no doubt that if you were so foolish to hurt "mom" or "dad" she'd be the proverbial "Fur Covered RAZORBLADE!" She has never growled at anything except the camels on the tv when the "MUMMY" was on. She swims like a fish, and rescues on instinct. We look forward to adding another one as her companion within a year or so. Call them the Beach Patrol. LOL