Welcome back to the East Coast! :D:D Not a very nice welcome from the neighbors. I don't have any great advice for you on that front. Good job on getting Lenny unattached from the BT. :D:eek:
Because you are an engineer, I'm sure you've already thought about extending the fence into the ground. 
I have friends that have chicken wire that extends into the ground (from a stockade fence) about 6 inches. I have used pavers to line my fence (chain link) with so that if the dogs dig, they can't get out.
Maybe call your town anonymously (or call your vet) and see what happens in the case of a dog being bitten when it comes into your hard…
Oh and thankfully you were home when it happened. I'm pretty sure if a similar thing happened at my house that the BT would ended up the same - or worse...
Thanks! Yeah, I hope nothing major comes of it but I guess you never know! The neighbors (parents) are adamant that it was the fault of their own dog for digging into our backyard. I agree, but still I wish Lenny wouldn't have attacked her like that.
Hey Renaultf1! Thanks! good to be back! Yeah, I've already put a board up along the bottom. It's a wooden fence so there has to be at least a little clearance to prevent rotting, but I will have to think of something to take up that space. There's only about 1" of space but apparently that's enough for a BT to dig through.
Oh yeah, the B's will not be out alone when we aren't home. There are just too many things that could go wrong. I'm pretty sure that BT would be dead right now if I wasn't there to intervene.
Thanks! Yeah, I hope nothing major comes of it but I guess you never know! The neighbors (parents) are adamant that it was the fault of their own dog for digging into our backyard. I agree, but still I wish Lenny wouldn't have attacked her like that.
Introduce your neighbors to an electric fence run on the bottom of their fence to keep the little monster from digging under. Not sure if you can get away with putting it on the outside of your fence? (neighbors side)
I lined the bottom of my fence with concrete blocks when we were in TX to keep other dogs out.
Oh, that is just a mess for everyone involved. Sigh. Do let us know what comes out of this please.
Welcome back to new England! Sorry to gear about Lenny, I think since your neighbors are somewhat in agreeance that it was their dogs fault that animal control will stay out if it but I'm sure will have a report on file. If you ever want to meet up with the b's I live not far away in north Attleboro.
Call animal control and report the dog getting into your yard so they document THEIR dog is the aggressor.
As long as your dog is up to date on rabies, you are fine except the at home quarantine in most states. That said, if not up to date, things will go terribly bad because the quarantine for unvaccinated can be at a vet office for up to a year some places, or immediate destruction to determine if it has rabies when it has bitten a person or unvaccinated pet.
I like both the electric and block idea. I have pea gravel along my fence line to prevent digging. I wanted to put railroad ties as I like the look but they were really expensive new and the used ones had possibly toxic oils on them. But my fence is buried about 5 inches so with that and the pea gravel I am good. You need the blocks or something that the dog can't get under.
I would file a police report against the dog unless you are able to talk to the owners and ask them to please restrain their dog, put it inside or do something to stop it harassing your dogs.
Fifth… yeah, stop your dogs from fence fighting.
(hugs)
The neighbors (parents) have said over and over again that it was their own dogs fault. The daughter is a little bit nuts and I think is just beside herself with upset that her dog got injured. But the parents are the voice of reason and have apologized many times. THey actually have a gate but I guess it was unlatched an the BT was able to get through it.
Both of my B's are current on their vaccinations… so no worries there.
I'll look into putting some bricks along the side of the fence...
Oh joy! 
Thanks everyone for your support!
I hope nothing comes of it since it was their dog that was coming into YOUR yard and the parents are acknowledging that. Hopefully they'll talk some sense into their daughter too and she'll be extra careful about letting her little monsters dig.
Putting bricks down should keep them out. Good luck!
