I thought I was going to die

Dr. Charlie fry was surfing not far from Sydney, Australia when something hit him on the right shoulder.  He turned and faced the open mouth of a shark with rows of teeth.  Not thinking but just reacting, the doctor reached out and punched the shark.   He says he knows it was pure adrenaline but he really thought he was going to die.  Fry says he scrambled to stay on his board and caught the next wave into shore.  The 25 year old suffered multiple puncture wounds.  The doctor says he believes the shark was between five and a half and six feet long and he plans to get right back in the water once his wounds heal.