In what some branded a misjudged move, the napkins carried Diet Coke logos and the words: “Because you’re on a plane full of interesting people and hey… you never know.”

There were also instructions on the other side, with space to write down a name and number, which said, “Be a little old school, write down your number and give it to your plane crush.”

Some people felt queasy about the prospect of surrendering their details to a stranger. One person tweeted that the napkins were “creepy,” pointing out that “no one appreciated unsolicited phone numbers in the ‘good old days’ and they sure as heck don’t want the number of someone who has been gawking at them on a plane for hours today. Not a good look.”