sentences:  All tests of this type are subject to some level of local controversy because they can lead to euthanasia of dogs, because some pet owners say their own dogs would fail, and because shelters can report lower overall euthanasia rates by counting only "adoptable" animals.American Temperament Test Society is a non-profit organization founded in 1977 by Alfons Ertel.The society conducts temperament tests of dogs through a ten-part standardized drill which is intended to assess a dog's stability, shyness, aggressiveness, and friendliness in the company of people.