This is a dangerous pastime, enjoyed by some dogs with an excessive zeal when protecting their territory. Some just chase the back of the car which is a herding instinct often found in Border Collies used for herding sheep. Others might run into the vehicle to head off the intruder in what the dog regards as its road.

Ask a friend, armed with a plant spray loaded with water, to drive slowly past and squirt the dog.

Car chasing is more prominent in complete dogs which have not been castrated. Most car tyres have a strong smell of urine which contains testosterone hormones. The dog associates the car as a threat to his status and in fact is chasing the car off.

If your dog is a car chaser, then you might consider castration.

If your dog is a car chaser, then you might consider castration.

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