Normally parents will attach a piece of string to their children's loose teeth and just give it a tug, but former Olympic decathlete Bryan Clay had some other ideas.
When Clay's daughter Ellie got a wobbly milk tooth, he decided to use his sporting prowess to pull it out - with his javelin.
What you use javelins for once you're retired. pic.twitter.com/gVwqK75bVa— Bryan Clay (@bryanclay) May 6, 2015
"Her brother and sister were telling her different ways and mum was too. Then someone came up with the idea of the javelin and the second she heard that, that's what she wanted to happen," the 2008 decathlon gold medallist told the BBC.
"I didn't want to do it. I was a little bit afraid of what people were going to think, what they were going to say, or that they would misunderstand and get a little upset.
"But it takes everybody back to a time when they did the same silly things to get their teeth pulled out and she absolutely loved it and kept asking me 'Please, please, please Daddy' until I gave in."
After tossing the javelin around 30 metres, Clay went to retrieve it and found the tooth still attached to the piece of string.
"Don't worry, the tooth is safely under her pillow," he said.