Dogs know that outside is fun and full of adventure so a rush for the door is natural. When we chase after our dogs with much ado, we reward them for this potentially dangerous behavior. You need to teach your dog to behave at the door. Practice door behavior before you have someone knocking or an imminent package delivery. Stand at the door and call your dog to you. Make sure your dog will consistently respond to the SIT command and have him sit at your side. Open the door. If your dog stays calm, praise him and offer a treat. If he bolts forward, move him back into a sitting position. You may need to use a leash to keep your dog in position. Practice this repeatedly. When your dog is consistent, practice with friends or neighbors knocking on the door. Remain calm and be patient. Contact your Greensboro, NC veterinarian for more information.