If you've got an itch, you should probably scratch it - unless you're Jennifer Lawrence.
The award-winning movie star, 26, has opened up on The Graham Norton Show about the time she nearly killed a crew member on set of The Hunger Games ... because her backside was itchy.
Lawrence set the scene by explaining that she was in a wetsuit for the whole day, and there was some sacred rocks in the area: "And you're not supposed to sit on them because you're not supposed to expose your genitalia to them."
But she added: "Oh my God, they were so good for butt itchin'!"
"One rock that I was butt scratchin' on ended up coming loose and it was a giant boulder and it rolled down this mountain and almost killed our sound guy," she said.
"It was a huge dramatic deal. And all the Hawaiians were like, 'Oh my God, it's the curse!' And I'm in the corner, going, 'I'm your curse. I wedged it loose with my ass'."
The story is just one of the clangers the famously loose-lipped Lawrence has delivered over the years.
In May, she revealed on The Tonight Show With Jimmy Fallon the first major one that landed her in trouble.
It happened during a press conference in 2008 for the film The Burning Plain. While one of her co-stars, Charlize Theron, was with her, Kim Basinger wasn't.
Actresses Jennifer Lawrence and Charlize Theron attend the red carpet at the Los Angeles premiere of The Burning Plain. Photo / Getty
That's when a reporter asked where Basinger was.
"I just leaned into the microphone and was like, 'You didn't hear? Kim died'," she recalled.
" ... I got ripped off the stage, thrown into media training, which was hilarious, because I was like Eliza Doolittle in My Fair Lady."
Lawrence also told Fallon the training hadn't worked.
"My publicist told me a week ago, 'Stop telling people they don't have to see X-Men'," she said. "I'm always like, 'I don't know. If it feels right. No pressure'."
