Swallowing spiders

According to an urban legend the average person swallows 8 spiders per year while they are sleeping.
In reality spiders avoid humans even while they are asleep. Spiders observe their surroundings through vibrations, the human breath would translate to spiders as danger. It would go against biology if spiders exhibited such suicidal behavior.
== References ==
https://www.scientificamerican.com/article/fact-or-fiction-people-swallow-8-spiders-a-year-while-they-sleep1/