My rule has always been simple. It I’m in its house (outside), it’s not my business. If it’s in my house, I have to make a choice. That choice was always smash (I’m arachnophobic), but my daughter has led me down the paragon path and I now save more than half of all spiders inside of my house. Maybe more. I don’t get that many spiders in my house here in arid western Canada.