Humanity’s most common phobia, according to a plurality of strange websites that specialize in this topic, is arachnophobia. Fair enough. Creepy crawly spiders are hardly pleasant. But fear is contextual: Your biggest fear when home alone is rarely your biggest fear when at a public event. For research into that latter category, we have the decidedly far-from-exhaustive profiles of contestants on The Bachelor. Every year, these profiles reveal that televised Lotharios and their concubines fear nothing more than the sudden onset of diarrhea on a date. Again: fair enough.  “The world’s first flatulence crisis management simulator”  This scatological tidbit came…