The Medford Mail Tribune reports the crafty canine managed to pull open his kennel, trip the dead bolt on the clinic's back door and pull down the handle to get outside.
He set off three motion-detector alarms on the way and managed to rip open four bags of food.
The dog roamed seven miles from the vet's office, but only made it home when animal control officers took him to a shelter where he was reunited with his worried family.
A veterinarian calls the dog's recovery from flulike symptoms "impressive."
