Why so many of us are casual spider-murderers

[SCantiGOP]

10. I had a friend years ago

who was finally diagnosed as having been bitten by a brown recluse.
He had smoked when he was younger, and this was back when people could still smoke around you in an office, and he had never had any problem with tobacco. His bite was not particularly painful, but did cause a nasty sore that took antibiotics and several weeks to heal, and after that he was so sensitive to tobacco smoke that he could have a horrible reaction just by being next to a smoker and inhaling the residue from their clothes.
As their names indicate, the nasty little brutes hide and are rarely seen, which is why most people in my region will check a pair of shoes before they put them on if they have been left outside.