Dolphins to the rescue!
Yet another reason to love dolphins: A pod of dolphins in New Zealand apparently protected a group of swimmers from a great white shark, by herding them together, and swimming around them in tight circles until the shark gave up and went away. (As they left, the dolphins were overheard saying "So long, and thanks for all the fish. " Or something like that.)
On a related note, if the Hitchhiker's Guide
movie isn't good, well, I don't know what I'll do, but I won't be happy.