Sleep with one eye open if your mates do this!
A new study from a Uni in Austria has found that those who enjoy a cheeky cup of black coffee have a higher chance of being a freakin' PSYCOPATH!
If the realisation that most of your closest friends love black coffee doesn't scare you enough, they also found that people who enjoyed more bitter foods such as radishes, celery and tonic water, also showed higher signs of being a psychopath.
So not only do you have to worry about your coffee loving friends, but also all those mates munching on hummus covered sticks of celery while drinking gin and tonics...
It's a bloody dangerous world out there people!
The study surveyed over 1000 people and found that those that preferred more bitter tones in their food "scored higher on a series personality questionnaires that assessed Machiavellianism, a term used in psychology to describe personalities that are dark, psychopathic, narcissistic and sadistic."
We guess you could blame the sample size for being too small to show solid enough evidence, but there's nothing wrong with a little heads up, just to be safe.