I find this quite interesting having been probably closer to being taken twice whilst spear fishing at Millers Point and Arniston...one does become foolishly complacent but I now know just very fortunate...it is a huge gamble...it all depends on their "mood" or if they have eaten recently or not and ones reaction...panic and reaction certainly spurs them on but you cannot blame them...you are an intruder in their domain. Some are not so fortunate...here are just some as I believe there were many more in the very olden days...I read a Boer war pow was taken off Boulders Beach in 1900 whilst bathing in shallow water and never found. But this list does not go that far back.
Actually it does go back further but typical Wikipedia...it gets some finer details wrong...ie some of the places are not in Western Cape but Garden Route and Eastern Cape.
List of fatal shark attacks in South African territorial waters - Wikipedia