Mel Ismail lost a foot while surfing alone at Glenfield Beach in Western Australia after a shark bit his leg and took a chunk from his surfboard.
https://www.foxnews.com/outkick-culture/australian-surfer-risked-life-save-fellow-surfer-attacked-shark
https://www.foxnews.com/outkick-culture/australian-surfer-risked-life-save-fellow-surfer-attacked-shark