The triathlon group I swim with had one of their colleagues taken by a shark a few years ago.
No matter how long ago. Bad and sad to read about such accidents. But a serious question of interest, not ironic in any way: Did the colleague swim BreastStroke, if he swam Freestyle, more TI-like or a powerful and splashy swimmer?
I ask, because I remember when I did Scubadiving years ago looking up from deeper down, all breast-strokers and even some freestylers looked very hurt and a shark may not be able to recognize them as: Does not belong in my prey scheme.