Most intimidating dog
Hailing from Britain, these dogs have a fierce loyalty to their masters without being so over-protective that they are a threat to children.
They’re never a case of a bark being worse than a bite, furthermore, since their jaws can easily crush bone and they rarely bark unless directly approached by intruders.
It’s not necessary to train these dogs to protect their family, however, since their prey drive kicks in whenever a stranger approaches.
Their prey drive isn’t triggered by other environmental objects, meaning that they won’t bark at other dogs or at squirrels, but are always certain to intimidate anyone who happens to come by.
From the above linked CDC study: “During 19, at least 27 people died of dog bite attacks (18 in 1997 and 9 in 1998).
At least 25 breeds of dogs have been involved in 238 human DBRF during the past 20 years.
Such behavior can often be attributed to lack of training, poor domestication, or ongoing inaction when our canine companion acts up.
However, even a diligent training regime can sometimes prove fruitless.
However, bare in mind that a lot of this is perception, and it doesn't mean that all these dog breeds are actually dangerous to people or unsuitable for adoption.