Study Says People Who Take Coffee Black Have Psychopathic TendenciesMarie Lodi10/12/15 11:45pm41920EditInvite manuallyPromoteDismissUndismissHideGo to permalinkDrink lots and lots of coffee, they said. Stop putting artificial sweetener in it, they said. Here’s some butter for your coffee, they said. And now: if you take your coffee black, you could be a psychopath. What in the what?