Despite popular misconceptions, pit bulls do not make ideal guard dogs because they are so people - oriented. (cesarsway.com)
They are particularly aggressive towards strange dogs and violent men, meaning they are ideal guard dogs, or even suited if you have a sheep farm. (blackdogrescueproject.com)
Labradoodles are not generally ideal guard dogs; although they will alert bark, they're more likely to invite an intruder in for tea on the good china. (dreamydoodles.com)