My son, an enthusiastic fan of classic cinema, once tried to convince my mother to let him watch a movie called Stalker before he went to bed. Being a sensible woman, she refused to allow her eight-year-old grandson to watch a film with such a foreboding title. He tried to explain to her that “stalker” in this context didn’t mean a dangerous and unwanted follower, but instead described a guide through a magical area called the Zone wherein lies a room that grants wishes. My poor mother again refused him as this explanation made little sense and sounded made up on the spot.