Related: Giant English Mastiff Getting 'Stuck' Around the House is the Definition of 'Big Dog Problems' It's clear from Kevin's video that Mastiffs are big dogs...really big dogs! In fact ...

The family believed the dog was a Tibetan Mastiff, a breed that can grow to be quite large Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her work has ...