This adorably grouchy pup has finally found a home after winning hearts on the internet in his role as "Grumpy Dog".

Sheldon was brought into an Arizona animal shelter a few days before Christmas, but, with such a scrooge-y looking mug, there weren't any potential adopters interested in bringing him home.

"Look at this face!! We may be biased, but we think Sheldon should be a doggy celebrity with all those expressions!" wrote Heather. "Sheldon is a great dog with a great energy level. Sheldon is equally happy to sniff around on his own or come over for some pets and attention. Oh and get this- he already knows "Sit" and "Paw" too! WOW- looks, smarts, AND personality!"

The post became a huge hit and was spread far and wide with social media users admiring his countenance and tagging him with #GrumpyDog. Most importantly, however, the photos eventually reached Emily Chmiel who fell in love.

Without waiting more than a day, Emily headed to the shelter the following morning and signed the adoption papers for Sheldon, who has fondly been renamed Cas.

Cas reportedly now spends his days snuggling with his new momma and hanging with Emily's five rescue cats.

Share This Pawesome Story With Your Friends (Photo by Heather Haltmeyer)