One man has been caught in the act.
An unidentified plane passenger was spotted scrolling through racy videos of women while a lady - believed to be his girlfriend - was sound asleep beside him...
Not only that - but a fellow passenger caught him on camera.
Eighteen-year-old Sandy Prudente from Washington took a video of the man watching a raunchy clip through the gap between their seats, MailOnline reports.
According to her, he was watching "explicit TikToks" and videos featuring a number of girls all through the plane journey, while his girlfriend napped beside him.
Sandy shared the footage on her own TikTok, along with an overlay text explaining the situation. "Can't trust no guy. Swear this man was watching girls literally nude while his girl is sleep," she wrote.
She captioned the post with a further explanation, writing: "It was more explicit TikToks, not just what he was watching right now."
The video quickly went viral, racking up over 3 million views and sparking a debate between viewers in the comments section.
Some people rushed to defend the man.
"He's on TikTok? How's he doing anything wrong?" one person commented.
"I don't see a problem with this. As long as he don't like it or comment? I literally be watching good-looking guys dancing too," another woman wrote.
"My husband looks at TikTok ladies all the time. It really doesn't have to be a thing," a third agreed.
Others accused Sandy of invading the couple's privacy.
"Why are you invading his privacy?" one person asked.
"Imagine if we lived in a world where people minded their own business on plane? Wouldn't that be magical?" another wrote sarcastically.
A third user said Sandy was "spying on random strangers".
However, not everyone thought she was making a big deal out of nothing. Many people were outraged by the man's behavior and even suggested that Sandy should have let his girlfriend know what he was up to.
"Men will never understand why it's not okay," one user commented.
"Someone find her and tag her," added another.
"I would have told her ASAP," wrote a third.
