While dogs are a man’s best friend, they can also be extremely dangerous. Perhaps the first choice as pets all around the world, the canines often become integral parts of families they are adopted by. While loyalty and faithfulness are primary qualities that are associated with dogs, they can also be aggressive and, sometimes, pose a threat to life. Of course, a lot depends on the environment they are in and the way they are trained. Here is a list of some of the deadliest breeds of dogs in the world. These top 10 breeds of dogs can even put Hitler to shame, considering you take him as a one mad canine.