The truth is:if your dog really tried to run away, you wouldn't catch it.

Unless you're faster and more durable than the dog. The strongest running speed in dog's family can reach 40 ~ 70km/h.They are a flexible, active animal, with a habit of running fast and vigorously. Their bones are strong and their muscles are well developed, which are the foundation of theirability to run fast. The fastest dog in the world is the Greyhound, which can run at a top speed of 70km/h..

So,please remember to wear a harness and a leash.