First dates can be a minefield at the best of times - trying to get a gauge on what kind of person your date is over coffee or wine can be tough going, especially when you're both on your best behaviour.
But one US woman has shared the moment a stranger stepped in while she was on a recent date, passing her a note telling her to "run" after spotting some warning signs.
Twitter user Hadia S shared a photo of the note on her account over the weekend, revealing that the message passed to her by a fellow cafe-goer was scrawled on the back of an old receipt.
"I had coffee with a guy yesterday," she began her tweet, continuing: "When he went to the bathroom, the gay guy sitting behind me passed me this note."
The note says: "Too many red flags. Run. Be safe girl."
Hadia made her account private after her tweet went viral, but the Daily Mail reports it racked up more than 33,000 retweets.
Commenters were quick to question Hadia what the "red flags" were and if she spotted them herself.
"I can't help but wonder how bright red those flags were for a complete stranger to notice AND write a warning note. Big yikes," one person pointed out.
In follow-up tweets, Hadia revealed her date had proven to be a fan of two notable figures: Da Baby, who came under fire earlier this month for making homophobic comments; and controversial dating guru Kevin Samuels, who has encouraged men to make disparaging and violent comments about women on YouTube.
But Hadia says she was more "amused" than concerned by the red flags.
"He wasn't dangerous at all, just had some very outlandish and slightly misogynistic thoughts," she wrote.
"I felt the need to stay and debate him on almost everything, but my angel was behind me the whole time. Probably judging me."