This post was a great read. I have been that person in the water at the beach when a fin comes barreling towards me. Thankfully it was just a dolphin, but it was a bit traumatic nonetheless. However, I think that sharks have a bit of a bad rep that is not entirely deserved. They are powerful creatures that can be a huge threat in the right circumstances. However, those circumstances are a bit rarer than some may think.
I really enjoyed reading through your information. I think you did an excellent job at presenting it.