As the old joke goes, "just because I'm paranoid doesn't mean they're not after me."
Sometimes the most irrational fear turns out to be ... well ... rational.
But is the fear really necessary, even if 'they' are after you?
On Cape Cod here in Massachusetts, a kayaker "paddled very fast" when he found that he was in the neighborhood of a great white shark... a summer vacationer's nightmare come true.
Who wouldn't paddle?