In 2009, a Navy diver got his arm and leg bitten off by a Bullshark while diving in Sydney Harbour. He does motivational speaking nowadays. The diver to people, the shark to his fellow sharks. I used to put a 9ft kayak in at a local rock Harbour and do a little fishing but then some dead whales washed up and some big Tiger sharks were around. I don't think my heart could handle a Great White tasting my little yak.