Pressing the flight attendant call button when flying can land you in hot water, according to one aviation pro.
The etiquette surrounding the small button to the side of the reading light and air conditioning switches on commercial jets is far from clear.
Once you've discovered that hitting it alerts the flight attendants to your presence, working out when it should be used is the next thing to do.
According to Sara Nelson, the international president of the Association of Flight Attendants, it should not be pushed every time you fancy a top up on your drink.
"Don't use the call button to ask for a drink... as a general rule, don't think of the call button as your vodka-tonic button," she told The Points Guys.
While kind members of the cabin crew may oblige your request, it's likely they won't be particularly wild about doing so as you're just adding to their already significant workloads.
Ms Nelson continued: "It's really for emergency use, first and foremost."
She did suggest that it was okay for parents with young kids to use it, particularly if they're holding the tot and need some help moving about.
Equally, people with mobility issues shouldn't be afraid to push the button to ask for help.
Nicky Kelvin, Head of The Points Guy UK, told MailOnline: "Call bells are primarily in place for safety or emergency use, and overusing them could diminish their impact or leave crew attending things that are far less important, leaving real issues in the lurch.
"Outside of safety, there are times that do feel appropriate to use a call bell.
"For example, if the seatbelts signs are on, but crew are still moving about the cabin and you need water, or have been forgotten about for some essential service - let's say you're missing cutlery and your meal is in front of you, the only way of attracting crew attention may be via the call button."
Earlier this year a flight attendant explained that it's worse to press the button during certain parts of the flights than others.
While they are there to help, calling at certain points could actually be dangerous to yourself and the flight staff.
TikToker @katkamalani said: "It drives flight attendants bonkers when you hit your flight attendant button if we are on the tarmac or if we're going up or down on the aircraft."
This might seem a bit strange but Kat explained: "The reason being it's a huge safety issue for us, we could get injured and same with you guys. So if we're on the tarmac, you hit this and it's not some kind of emergency we're going straight back to our seat."
