Sandra Bullock burned herself dying her pubic hair.
The actress - who is married to motorcycle enthusiast Jesse James - admits she was horrified when her special Valentine's Day grooming efforts went wrong.
She explained: "I decided for Valentine's Day I would do a special hair thing. I wanted to try to create a pink heart shape with my lower hair. It was painful.
"You had to bleach it first. There's something about bleach that feels like acid. Then I had to shave it. I was in so much pain, but I kept going and put the pink dye on and it went the wrong colour."
The 45-year-old star also suffered another dyeing disaster when she went blonde recently for her role in The Blind Side because Jesse hated it.
She admitted to Britain's OK! magazine: "There is a very important person in my life who just didn't want me being blonde - thank God.
"There was a big person who said, 'I don't like the blonde on you, take it off. You want him to say that.' You want him to say that. You do."