What about Fear of water? Phobias: xenophobia definition is a bit simplistic; yes 'strangers' but also more towards the fear of foreigners. Usually, used socially and culturally than just 'strangers' but I digress.
Kurt Vonnegut on Writing Fiction: 16 rules . You choose. The most meaningful aspect of our styles, which is what we choose to write about, is utterly unlimited. (As a writer of suspense, I dispenses with but the rest are Very Good Rules to write by.