And he is in danger of becoming a victim of the dreaded black dog syndrome. (shelterme.tv)
This information about black dog syndrome has been very useful, as I just rescued a Black Lab off the street about 3 months ago and have been trying to place him ever since. (dogingtonpost.com)
BBD — or Big Black Dog Syndrome — is a somewhat unexplained, but widely known phenomenon among shelters. (petsforpatriots.org)