Reasons for dogs chasing people for no reason:

1. Entering the dog’s territory by mistake. Dogs are very territorial animals, and they usually divide the places where they frequent into their own areas. When strangers enter its territory, it will be irritated, so it needs to evacuate quickly at this time and do not stay.

2. A premonition that its owner is in danger. If someone wants to hit the dog owner, the dog will realize that you are in danger to its owner and will step forward to protect the owner.

3. Protect puppies. When a female dog has just given birth to puppies, she is extremely defensive and does not allow anyone to touch her puppies. If people rashly approach its safe area, they are bound to be attacked.

When the dog behaves like chasing people, it should be criticized and punished. If the dog is disobedient, take the dog home and repeat it several times to correct the dog's habit of chasing people.