Which just doesn't matter in this case, because I've never seen a smart person with one of those things. No technical person would have one. They don't make logical sense. Of course normal people don't own things that can just hurt them any time at random. So many children are killed or maimed by dogs per year. That is why smart people stay the hell away from those things.
Are you that much of a psychopath that you even treat animals so cruelly they can turn on you in an instant? Or just so introverted that you can't handle any interaction with another social creature? And I guess smart people don't drive cars, go swimming, or hell, even make their kids take a bath because so many children are killed by them every year. Why even have kids, since so many die in childbirth every year. Remember, dogs evolved and were bred to live alongside humans. To most people, the companionship of dogs far outweighs the miniscule risk that the dogs will cause any kind of bodily harm. Either you just hate dogs or you have an overly inflated sense of risk, but I am pretty sure I know which one it is.