10 Scariest Dog Breeds You Will Surely Run Away From

Greater Swiss Mountain Dog

From the appearance of this dog alone, you will start to get scared. They are generally large and muscular. They can reach up to 70kg in weight and 72cm in height. They also love going in packs. They easily gets stressed out if a member of their pack wanders off. This means that whatever risk an individual dog poses, it is multiplied several times depending on the members of their pack.