Montgomery has mange. And because of this, someone thought it was best to treat him. So they did - with industrial solvent.
Which means Montgomery is covered in chemical burns.
He is #16 on a list of dogs that Big Fluffy Dog (BFD) - a Nashville, Tennessee, dog rescue group - is on a mission to help as soon as possible in what is ostensibly a joyous season.
"Every year, people dump their dogs at shelters right before the holidays. Shelters get full and dogs die because people are thoughtless. I dread Thanksgiving for that reason," writes BFD's founder Jeanne Harrison on the organization's Facebook page.
So BFD is making a swift appeal to fundraise as much as it can before Thanksgiving: "We are poor and we are running at close to capacity. I would like to squeeze in more, but fiscal responsibility means that I have to say no. I don't feel like saying no, so I am going to fundraise and we will take in as many dogs from kill shelters as we can fundraise for in the next two days," adds Harrison on her post.