I know two people who had to have surgery to repair brown recluse bites. The lady was sure the spider was in a shed where she was moving garden materials. The man, a plumber, had no idea were he encountered the spider.
I saw one Thursday night. Did not see a lightning bug all of last summer. When I was a kid you could see hundreds of them while sitting on the porch of my grandparents farm in rural North Carolina.
Both of them.