Never one to take a backseat to anyone or anything, the Bull Terrier is a friendly, feisty extrovert who's always ready for a good time, and always happy to see you. A Bull Terrier who's shy and backs away from people is absolutely not normal.

Bull Terriers and Mini Bull Terriers are described as courageous and full of fire. These are good traits, but they can veer into the disagreeable category if the Bull Terrier is allowed to become possessive or jealous. Without early training and socialization--exposure to dogs and other animals--they can be potentially aggressive toward other animals.

With people, though, they have a sweet disposition. On the downside, they can be chewers, barkers, and tail chasers, and are often difficult to housetrain.

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