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	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

This incredible but true story started on Saturday, August 21, 1999, when I was at Sea World near San Antonio, Tex, with my family. It was a hot afternoon (104°F), and to cool off, we all went swimming at the aquatic park. Because of a previous bout with skin cancer, I wore my usual hat with a large brim. Of the hundreds of bathers, one other person also was wearing a big hat. As I was wading out of the pool, my path took me near this big-hat-wearing person, a young woman probably about half my age. I pointed to my hat and said something dumb like "it is a good day for a little shade!" She agreed, and I walked on past her on my way back to our chairs. I had gone but a few steps when my guardian angel with the big hat caught up with me . . . [Full Text of this Article]