There are many perils of modern-day dating - and it's always wise to meet a stranger for the first time in a public place.
In the quest for romance, it's common to experience a few creeps along the way.
But when it happens, amazing strangers can happen to be in the same place and alert you that your date is red flag central.
One man is being hailed a hero on social media after he came to the rescue of a woman who sat next to him while on a date in a coffee shop.
The woman, called Hadia, shared her unfortunate experience online - and posted a note the coffee shop man handed her while her date was in the bathroom.

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It went viral after she posted it on Twitter, with many praising the quick-thinking man for taking the initiative to alert her without making a scene.
Hadia posted: "I had coffee with a guy yesterday. When he went to the bathroom, the gay guy sitting behind me passed me this note."
The note said: "Too many red flags. Run. Be safe girl."
On Twitter, one person replied: "I can't help but wonder how bright red those flags were for a complete stranger notice AND write a warning note. Big yikes."
Hadia replied: "As bright as my red nails."
She added: "It honestly wasn’t THAT bad….until after he came out the bathroom. Everything he said after the note was a major red flag."
One person replied: "If I got that note I'd have immediately given him the "appreciate it" head nod and ended the date early. Nobody is going to see a man's red flags faster than another man."
"Not to be dramatic but this advice could literally save your life," added another.
"I once went on a drink date and the bartender was super nice to me and kind of rude to my date. I remembered wondering if that was a red flag. Turned out it was and he was right," shared a third.
One person added: "Not all girls are great at picking up on the signs - I've missed a few, so to have an outsider who is objective to the scenario notice these signs. It just may have been a genuine warning."