I agree with the last two post. Suggest them doing the cable runner if that doesn't help call animal control. Sounds like the dog could be a threat to the neighborhood. Already biting one person twice and growling at the grandson. When you came home it could have been worse on you. What if he had bitten you. This sounds like a very serious matter to me. Destroying your property. I would call someone to find out what can be done on fixing and repairing your property. Your neighbors should be held accountable. Good luck.