When Australian schoolboy Angus Chapman felt a tug on his leg while playing in the sea, he thought it was his sister messing about.
But when he took a closer look, it turned out a shark was trying to take a bite out of him.
Angus, 15, punched the shark and got back to the shore, even though his leg was badly hurt.
He was flown to hospital, where he had a big operation and is expected to make a full recovery.
The shark attack took place on the remote Cocos Islands in Western Australia.
Bronze whaler
|
Angus told reporters that if he hadn't punched the beast, he feared he would have lost his leg.
Angry
It's been suggested that a bronze whaler - one of the angriest sharks in the sea - might have got Angus.
But some local people think that it was barracuda fish that attacked.
Shark attacks are rare and, even though he's had quite a fright, Angus apparently loves the ocean so much, he can't wait to get in the water again.