If you've ever wondered why the flight attendant with the drink cart took forever to reach your row, there's a good chance it's because everybody was holding up the works by ordering this one drink.
For the parched traveler who needs a drink now, don't order a Diet Coke on a plane because it takes longer to pour than other drinks, according to an anonymous flight attendant who writes the blog These Gold Wings.
In a 2013 blog post, the flight attendant noted that because the average airplane cabin is pressurized to the equivalent of about 8,000 feet instead of sea level, soft drinks foam up more when poured out of a can.
"The worst culprit for this is Diet Coke,'' he wrote. "I literally have to sit and wait for the bubbles to fall before I can continue pouring. If all 3 passengers ask for Diet Coke I’ll often get them started, take another three drink orders, serve those, and then finish the Diet Cokes. As the infomercials say, 'There’s GOT to be a better way!'''
The veteran flight attendant move is to turn the can completely upside down into the cup and then lift and tilt it slightly to pour faster without worrying about the foam spilling over the top, according to the flight attendant.
More Drinks videos
Brew up vampire slushies, candy corn cocktails for your Halloween party
From pinot noir to prosecco: See the best fall wines under $20
See Valerie Bertinelli make spicy margaritas, Irish coffee and more
Broken a wine cork? Here’s a hack to keep pieces out of your glass
"Pouring Diet Coke is one of the biggest slow downs in the bar service and on the shorter flights those precious seconds count!" he wrote.
He also would like people to know that it's not irritating for him to pour Diet Cokes, as it's been presented in multiple stories about the blog post. It's just one of those quirks that flight attendants have to deal with.
"Here is my official stance on passengers ordering Diet Coke, not that anyone should actually care: I don’t care what you want to drink,'' he wrote in a post on July 19. "I’ll pour it, and I wont have a second thought about it."
Follow TODAY.com writer Scott Stump on Twitter.