I don't kill spiders out of fear per say. But Brown Recluse's look very similar to other spiders and are very venomous. I prefer not to take that chance. They get the tissue. We have those here. I've woken up with some doozies of spider bites before. Sucks. Nearly dead patches of flesh and all that. Edit: https://en.m.wikipedia.org/wiki/Brown_recluse_spider