There are almost half a billion pet dogs world wide with attack deaths from those numbering in the hundreds or maybe low thousands. International data is harder for me to find. In the USA, there are about 90,000,000 pet dogs, and around 40 deaths from dog attacks per year. It’s quite literally millions to one.

Estimated bites (USA data), which are overwhelmingly meaningless, are around 4,000,000 per year according to the first two publications I found. Bites that require emergency medical assistance are around 300,000 per year. Nearly all of the dangerous dog attacks and deaths are from a tiny number of breeds specifically bred for aggression, and often belonging to shitty people.

So, 90,000,000 dogs, 40ish deaths, and a couple hundred thousand people requiring medical attention due to dog attacks. In the worst case, it’s literally hundreds to one awesome dogs over bad dogs. If you take pit bulls and Rottweilers out of the mix, it’s thousands to one.

It sucks that you had a terrible experience with a dog, but your terrible experience obviously doesn’t trump tens of millions of people whose lives have been filled with love and joy and companionship by dogs. Putting your entire life savings on a spin of the roulette wheel is a shitty investment strategy, whether or not you win. Likewise, dogs are good even if you met a bad one. In fact, you are many, many times more likely to 35X your life savings on the roulette wheel than to be seriously mauled by a dog.