I think if that were real - in the initiall bite where he panicked but did not move.... there will have been blood in the water instead of clear.. and a good video camera man would have filmed the after stuff
In S.A they know the great whites are allways under them,
interesting how in perth 'Terror' sharks get spotted cruising past maybe 10,000 people in the water and they dont race in for a quick munch ??
Maybe they dont all have a mobile