恶犬皆因有个坏主人?

You see a guy walking a pit bull with a studded collar. What's your first thought: tough guy, right? Well, probably. But chances are he's a conscientious, rule-abiding tough guy. So says a study in the journal Anthrozoos. [Vincent Egan and Jason MacKenzie, Does Personality, Delinquency, or Mating Effort Necessarily Dictate a Preference for an Aggressive Dog?]

Researchers gave personality tests to 235 subjects—from teens to people in their 60s. Those subjects also rated how aggressive they considered different breeds of dogs to be, from Cocker Spaniels to Pit Bulls, and chose which type they'd most like to own.

As the authors expected, the most unfriendly study volunteers, and the youngest, preferred the meanest breeds. But the stereotyping ends there. Pit bull lovers weren't any more likely to have delinquent past behavior—like carrying weapons for fights—than people who preferred friendly Labs.

In fact, pit bull lovers actually scored higher for conscientiousness on the personality test. Which means they may be more rule-oriented, careful and organized—the perfect candidates for dog training classes, the authors say. So next time you see someone walking a fearsome dog, that person’s bark may be worse than his bite.

—Christopher Intagliata