This is such a strange thread, not even sure where to begin.
Animal care is simple for me. I don't trust animals, from my snakes to my dog. Which means, I don't let my dog and my snakes interact. I only have a small dog (miniature pinscher), but she could easily inflict a nasty bite to a snake, and similarly my larger carpet pythons are more than likely capable of constricting her, if given the chance. So the two don't come into contact unless it is through glass.
On a similar note, I generally don't let my larger snakes get too close to my face (even snakes that are perceived as tame), accidents happen and I don't want to cop a bite to the face or eye. I handle my snakes no question, but there is no need to have a large snake pressing up against my face. I don't have children, but have lots of kids in the family (and close friends), most of which are more than happy to have my dog near their child's face (and their own dogs at home), I also avoid this especially with small children who are still learning what gentle is, whether that be through coordination or otherwise. It only takes one bite, even from a small dog to damage a child's face and while my dog has never bitten anyone in her life, she is still an animal and accidents happen. When animals are injured, instincts kick in, and that may be to 'defend' themselves with a bite. I would also apply the same methods with cats. I have two family members who are in the health care business (doctor and nurse) and both of them have far too many horror stories of children bitten on the face, usually by the family dog (even cat stories). Nothing makes me cringe more than seeing very small
I am also a freshwater stingray keeper - and will always ensure that the rays are nowhere near my arms and hands when working in my tanks. While the rays are more than used to me, it only takes one bad move on my part to spook them and I end up with a barb in the hand/arm, or even worse unto the wrist.
The point I am trying to make is be smart, realise that while pets are indeed a part of the family, they are still animals and have their limitations. Live by a few simple rules, and 99% of the risk can be eliminated.
Cheers,
Alex