When Little Miss, one of the sanctuary's oldest kangaroos, injured her leg, he had to carry her into town to get the medical care she needed. He sat in the waiting room with her, cradling her in his arms.
Luckily, Little Miss recovered from her injury.
But Barns realized he could do even more for his rescued animals: He recently decided to start a hospital at his sanctuary just for them.
This way, these unique animals can live long, happy - and healthy - lives.
"Oh my goodness, you do have an armful," one Facebook commenter wrote in reaction to the photo of Little Miss in the waiting room, "but what a lovely armful Miss is."