Ever wondered if one of your nearest and dearest may secretly be hiding psychopathic tendencies?
Well now you might be able to put it to the test, after a woman's video went viral in which she poses a simple question and claims that the answer can be very telling.
TikTok user @Sophia.Boi shared a clip, which has since been viewed more than 3.5 million times, issuing a disclaimer at the start that she is not a professional and the test is not a diagnosis, so maybe don't get to carried away (or terrified) by results.
The test begins with an imaginary scenario, asking you to close your eyes and think about walking through a creepy forest as your heart pounds and you hear sounds surrounding you.
She says you should imagine that "suddenly you feel breathing behind you and you whirl around in terror" to see what it is.
And the test all comes down to what you saw. Sophia gives possible answers including a wild animal, a pale person of the opposite sex, a shadowy figure, a dog, a giant bug, or simply nothing at all.
In a follow up video, Sophia explains: "It says here that for some reason people who do possess psychopathic tendencies often say dog.
"So psychologists don't know the real reason why so many psychopaths say dog, but here's one. 'The dog answer could be indicative of a masking behaviour, dogs are fluffy and non-threatening.
"'Maybe this is a psychopath trying to prompt in the mind of the interviewer this manipulative, self-serving answer, that they see the interview as a passive object to be manipulated'."