Imagine booking a room at a small, charming, off-the-beaten-path hotel on the Hawaiian island of Kauai using a popular mobile travel app, only to discover that the room is… haunted! That’s what happened to my friend Dana. As Dana told it, she went to bed at midnight after a long travel day. But that didn’t go as planned. She struggled to sleep. Then, at 3 A.M., Dana claims she saw a pale, vaporous head of an older fellow floating above her bed, mouthing words she could not hear. (Believe me, Dana’s rather uniquecustomer adventure is worth a blog all its own.) I haven’t had the chance to travel…