"Deaf therapy dog caught sleeping on the job in elementary school music class. Being born deaf is an advantage for this gig. 100 percent unbothered," read the caption. Cole's owner, Chris Hannah ...

While he happens to be deaf, he hasn't let his disability affect his travel experiences. Follow Calvin's travels here. Story by Sarah Schmalbruch and editing by Alana Yzola Follow INSIDER on ...

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Cole, a deaf therapy Pit Bull who works with kids, hit his limit one day in the middle of his "shift" with an elementary school music class. The tuckered pup got caught sleeping on the job ...