In general, dogs are wonderful companions since they are sociable and kind.
However, when they do bite, it can cause a major problem.
Over four and a half million Americans are bitten by dogs every year, with over 20% requiring medical attention.
The German Shepherd is the A-list dog breed; stunning, devoted, and always up for a challenge.
That's why they're so popular with law enforcement and the military: they're both strong and protective.
Their protective nature could be overly aggressive toward strangers if they aren't properly trained.
Their awesomeness as guard dogs comes with a price, though; they may be problematic in some situations.