This is a good question and a valuable discussion. Another aspect to consider along with everything else is that all our lives are filled with risk. Pet animals, and humans, may be killed quickly or slowly any day anywhere in the world, in large houses or in vans, in the middle of a large city or in the middle of nowhere. Think war, tornadoes, floods, wildfires, gas explosions, plague, etc. Consider the risks, yes, but understand that there will always be risks.