SYDNEY, Australia (Reuters) -- A 60-year-old woman jumped on the back of a crocodile as it dragged a man from his tent in northern Australia on Monday, but was then attacked by the crocodile, which dragged her towards the ocean until it was shot dead.
"The 60-year-old woman and 34-year-old man suffered broken limbs, cuts and bruises in the attack by the 4.2 metre (12.6 feet) crocodile, said wildlife and rescue officials." - CNN.com

Nothing in th earticle mentioned that she knew the man. Would you have done the same for a stranger?

If I was as agile as that 60-year-old lady seems to be, perhaps.