One thing all flight attendants have to wear - that you might not have noticed
It's no surprise working as a member of cabin crew comes with many rules, mainly for the safety of passengers flying on planes.
A host of different rules are enforced by airlines and must be followed by crew.
And they don't only apply on the aircraft, but often on the ground too.
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Many rules are enforced by airlines and must be followed by crew. Getty Images/iStockphoto
One of the most surprising relates to watches.
Because while many people rely on their phones to tell the time these says, that's something cabin crew can't use when working.
Instead they must wear a watch.
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Flight attendant requirements around the world, as airlines break tradition with new uniforms
That allows them to coordinate pre-flight safety checks, meal and duty free trolley service, according to The Telegraph.
Virgin Atlantic told the paper some emergency procedures require "precise timing and synchronising watches with the pilots."
If a crew member turns up without one, it is reportedly "instant home time".
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Cabin crew must wear a watch. Getty
Meanwhile, serving as well as tidying up after passengers is one of their jobs. But travellers probably don't realise there are different gloves for everything.
Virgin Atlantic crew also revealed there are no less than eight types carried on board.
All have different uses. Some must be worn when handing out food, others for cleaning the toilets. Another type is there in case of a medical emergency.
They are generally not allowed to be seen eating or smoking while wearing their uniform in public either.
However, these rules are nothing compared to those which emerged from the 1950s.
The image of the outdated "qualifications" for airline workers on Chicago and Southern Air Lines was shared on Reddit earlier this year, quickly garnering hundreds of comments.
Rules for flight attendants have evolved over the years. Getty
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One of the requirements said the attendants, called the outdated term "stewardesses," had to be single – very specifically stating they can't even be engaged.
The women had to be between the ages of 22 and 28, between 5'2″ and 5'5″ (158cm to 170cm), and between 100 and 120 pounds (45-55kg).
There are still rules for cabin crew such as height, but these days it is for safety reasons.
Flight attendants don't only have their own rules to follow, but also need to keep an eye on passengers. For example, airline workers including crew have a sneaky way to find out if you've had one too many in the departure lounge bar.
You probably won't even notice, but they're checking you out in a simple way, an expert revealed.
Cabin crew are checking out passengers for safety reasons. Getty Images/iStockphoto
Andras Rado, head of communications at low cost European Airline Wizz Air, told The Mirror they have "procedure that is not known to passengers."
"It is not a secret that we're doing it - they just don't know how we do it," Andras said.
"The cabin crew screen passengers. They have certain criteria to watch, then they watch it.
"An example is how the passenger greets you back. Do they greet you back? There are signs that a person is already drunk."
Meanwhile, as well as checking if you're sober or drunk, flight attendants are also looking at your shoes for one particular reason.
In a real emergency, heels and thongs can slow evacuations.
