Duncan ran out the first time at 3 months old and ran after the mail man, and got pepper stayed right in the face
Second time he saw a Chi passing by and Duncan pushed the screen door open and was just about to bite him on the neck when he heard my voice and he stopped. Poor Chi he threw himself on the floor I thought he had fainted.
Now we put the xpen in front of the front door, making a half circle, that way to go out we go thou the gate first and make sure it is placed correctly before opening the front door. We are able to leave the door open to bring in things from the car and not worrying about him running out.