And that's what he must have seemed like to the staff at a medical center in northern Canada, where the dog spent day after day haunting the property.
But they soon realized the truth:
"He was owned," Erin Manahan, a foster care volunteer with Northern Reach, told The Dodo. "A very well taken care of dog, actually."
His family had been in a car accident.
They died at that very hospital, orphaning him in an instant.
And the dog, whose name was Snappy, just couldn't let it go.
Staff members at the nurses' station gradually earned Snappy's trust, feeding him and taking care of the heartbroken dog.