My chest hairs are tingling! Something’s wrong. — Cloudy With A Chance of Meatballs

Listen to your instincts.  That little voice that says “Look over your shoulder” or “Don’t go in there” just might be your brain picking up on something that you’re not consciously seeing.  That tingling sensation on the back of your neck just might be the difference between “Whew, that was close!” and “Ma’am, I’m sorry to bring you this news…”.