I've read a bunch of dog-related SCPs and didn't find this plan. Let me know if I missed something.
The dog is a loyal and loving pet, to an extreme fault. This dog can and will overcome ANYTHING with the single minded focus of getting back to its "owner" (who will probably be classified as a -1) dog is indestructible, immortal, and can make it home from anywhere (somehow). No sleeping, no eating, no pee or poop, just perpetual jumping, licking, and barking once it gets back to its owner. Probably will be Euclid due to its extreme disregard for any destruction it may cause in its path. There more to it so ask away I gotta run!