I've seen poorly raised dogs mauling children. 100% the fault of the owners for being dipshits, but even domesticated animals are a risk. An animal is an animal, we are not masters of the universe, we can't control them. Just, be wise and learn how to properly train and socialize a dog. Even my lovely poodle who had never even growled in 6 years, once threatened to bite another dog in the park because the owner thought it was fine to leave him off the leash and it came at her aggressive and too fast. She was fine with the other properly socialized dogs, but this one overstepped the boundaries and almost got hurt. The owner liked to claim she had trained her baby, but there she was screaming like a hysterical idiot and being completely ignored by her perfect angel who thought he could prowl the world. That dog got lost for two days not much later.