Guarding Tendencies If your dog shows a tendency toward guarding her food early in life, it will be a hard habit to break as she grows up. 강아지에게 음식이나 씹을 수 있는 장난감을 주면서 경계하는 행동이 있는지 확인하세요. After a few seconds, approach the pup and pet her on the head and body.