7. Wolf Hybrid
This breed is extremely unpredictable and skittish. Breeding a wild animal and a domesticated one is fraught with danger. Many states have taken measures to prevent the ownership of a wolf-hybrid by making it illegal. The CDC reported that between 1979 and 1998, 14 Americans died from wolf hybrids.
8. Boxer
Boxers are descendants of hunting dogs and were used in WWI as guard and attack dogs. Boxers are the perfect choice for families looking to create a safe environment. They are strong and possess powerful bites. In 2013, a boxer was responsible for a fatality in Arizona on December 28, 2013. The boxer bit its owner as he tried to stop a fight between one of his dogs and his boxer.