There are a few ways hospitality staff can subtly communicate with customers when their safety and wellbeing is concerned.
From the whole 'ask for Angela' campaign to asking for 'angel shot' as a way for customers to ask bar staff for help if they feel threatened or frightened - it's definitely comforting to know
And it's clearly not just bartenders as one Starbucks barista has also been praised after leaving a 'secret note' on cup to help a young woman out.
Texas woman, Brandy Selim Roberson, took to Facebook last year to share the story.
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She praised the barista for intervening when her 18-year-old daughter was approached by a man she didn’t know while studying by herself at the popular coffee house chain.
Roberson wrote in the caption: "My 18-year-old daughter was at Starbucks, alone, the other night. A man came up to her and started talking to her.
"A barista handed her 'an extra hot chocolate someone forgot to pick up'."
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The message on the cup read: "Are you okay? Do you want us to intervene? If you do, take the lid off the cup."
"How grateful I am for people who look out for other people!" the post continued.
It added: "Side note: She felt safe and did not remove the lid, but let them know.
"She said the whole team was watching over her the rest of the time she was there."
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Roberson then went on to issue a 'thank-you' to the team members at that Starbucks shop for their help.
And people shared their thoughts in the comments - with many praising the barista for their 'very smart' and 'thoughtful' actions.
One person wrote: "That’s so nice. Let’s all be that person that cares and not the one that simply looks the other way. Let’s protect each other, especially the young ones even if we don’t know them."
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Another replied: "It's a sad world that we have to think this way... But nice to know someone has your back."
A third person responded: "We all need to pay attention and look out for one another."
"This employee needs a promotion!!!" a fourth user commented, while someone else said: "They deserve the biggest tip ever."
And a final commenter, who added that their daughter often goes to that particular Starbucks location, said: "Happy that there are employees out there going above and beyond."
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Barista of the Year or what?
Rhiannon Ingle