Beware the stories currently floating around in social media, with links to research that suggests people who prefer their coffee black are more likely to be psychopaths. It's simply not true. The original kerfuffle dates back to October 2015, but Slate hopped in to quickly debunk the headline. But as with most things on the internet, the rumour lives on, and is doing another round on Facebook. Your mission, should you choose to accept it, is to correct the record and keep on enjoying coffee your way, secure in the knowledge that there is no known correlation between black coffee and psychopathic tendencies.