I think that it would scare me half to death to be out in the water like that and see a Great White, or ANY shark for that matter.

Once when a buddy and I were diving in Hawaii we had a couple barracuda checking us out. They stayed Just on extreme limits of our flashlights. That was kind of an eerie feeling as well. Oh and once I was coming up the side of a sunken ship and just as I got to the top deck and started to go over, a Moray eel came out of his hole in a pipe about two foot from my face! He had real healthy teeth!