Charge across the room, barking loudly and leap playfully on this person. If the human falls down on the floor and starts crying, lick its face and growl gently to show your concern. So bark - a lot. Your owners will be very happy to hear you protecting their house. Especially late at night while they are sleeping safely in their beds.
Humans prefer clean tongues.
Be ready to fetch your human a towel. If you arrange a little pile of dirt on one side of each hole, maybe they'll think it's gophers. There are never enough holes in the ground. Strive daily to do your part to help correct this problem. It is your duty, as the family dog, to accommodate them.