What is considered aggressive is culturally and generationally relative. German shepherds were on the top of the list after World War II; in the 1990s Rottweilers and Dobermans were scorned; the American Staffordshire terrier (also known as the pit bull) is the current bête noire. Their classification has more to do with recent events and public perception than with their intrinsic nature. Recent research found that of all breeds, dachshunds were the most aggressive to both their own owners and to strangers. Perhaps this is underreported because a snarling dachshund can be picked up and stashed away in a tote bag.