Earlier quoted context omitted.
You are on a cocktail party. Have had a few drinks with friends. You all start talking about spiders. How they are these wonderful tiny creatures to be protected. You know, they got rid of insects and it's actually good to be above this. After all we have intellects, a sense of morality, and a will. We're not some freaking lobsters driven by phobias. And you know what? At this wonderful evening party, we all agree, t…
Or, like my father-in-law, you go and grab a paper towel, pick up the spider, and let it go outside on front lawn. I have never seen him kill a spider. And some percentage of the time, more and more with each passing year, even though I am terrified of spiders, I don't kill them because of conversations like the one you describe. Just because some people react with their emotion doesn't mean everyone does and it does…
Given how many spiders are only inside or only outside spiders, you basically just said you seen him sending the spiders to their death. The person smashing the spider isn't much different than the person putting it outside.
Not the best source, but a good starting point: https://www.livescience.com/48479-spider-myths-busted.html
>Just because some people react with their emotion doesn't mean everyone does and it doesn't mean we have to.
And yet consider the example you gave in light of the current body of evidence.