" Those people who post pictures of their dinner on Facebook, only to be disappointed by the lack of “likes” from friends, are simply trying to appeal to the wrong audience. If there were such a thing as Facebug (Facebook for microbes!), a picture of your dinner would provoke an excited response from millions of users—and shudders of disgust from millions more. The menu changes daily: useful milk digesters contained in a cheese sandwich, armies of Salmonella bacteria hiding in a delicious dish of tiramisu. "

― Giulia Enders , Gut: The Inside Story of Our Body’s Most Underrated Organ