From crying babies to a couple having a domestic, there are some plane passengers you simply don't want to spend time in a confined space with.
But one woman has truly taken the in-flight biscuit.
Earlier this week, Dante Ramos, a columnist for the Boston Globe, tweeted a photo of a passenger sat in-front of him with her ponytail dangling over the seat, covering the in-seat television screen behind her.
"Congrats to the ponytailed young woman in seat 22B. You've invented a whole new way to be awful at 35,000 feet," he tweeted.
He later clarified that they had eventually got the woman's attention, prompting her to move her hair out of the way of the screen.
"After marveling for a bit at her obliviousness, we got her attention. She moved it [sic]," he wrote.