A further finding about side effects of coffee (chapter the three-thousandth-after-next):
“Carbon Monoxide From Domestic Coffee Roasting: A Case Report,” Joel B. Raffel and Joanne Thompson, Annals of Internal Medicine, vol. 159, no. 11, December 3, 2013. The authors are at Imperial College London.
BONUS: Coffee and convenience store workers and air pollution and lots of other stuff, all together