This dog is furious about being left in a parked car with the windows up and wants everyone to know.
According to the video's uploader, the dog was discovered in Eureka, California. Apparently, it'd drawn a few onlookers by the time the videographer arrived due to the fact that it had been blaring the horn on and off for several minutes.
No word on whether or not the road-raging pup ever got the attention of its owner, but you have to assume the reunion was tense. Or at least awkward for the owner to come to a parked car full of strangers watching.