Buddy's humanbeast Katherine (@tiptop1997 on Instagram) says:
we adopted him when he was about 16 months old because the owners no longer wanted him and left him at the vet. When we where adopting him we learned that his previous owners had been abusing him, and several times Buddy had tried to escape so the owners though he was to much of a burden and left him at the vet for someone who wanted him.
When the vet told us that we adopted him and named him Buddy, and he fit right in with Sophia (which they later had some puppies and that's how we got Eddie:)) Buddy is a great dog, he's always happy and loves to run around and play with our two American Bulldogs named Bella and Damian and lovers to go on walks! :)
But the sad thing about Buddy is that before we adopted him he sat in a cage most of his life so after we had adopted him he got arthritis in his back to legs and hips so it's hard for him to walk and run around most of the time :,(.
Buddy is an amazing dog and I'm so glad we adopted him, he's a great member of our family and I love him so much <3 :)
How anyone could just abandon this boy I have no idea, but it sounds like he got very lucky indeed!