We have three wonderful dogs and recently agreed to foster two Shelties for our veterinarian. The dogs are 3 years and 10 months old and were never socialized (puppy mill). The older dog will allow us to touch her, but her son (younger dog) runs from us and avoids us at all cost. They get along with our other dogs, but do little else. Any suggestions would be appreciated. It is heartbreaking to watch these dogs. All of our dogs are members of our family and reside in the home with us.