What Rae didn't realize was that Corona had been to many different worlds. In some of them, it wasn't uncommon for something strange to happen just for "no reason". Different worlds have different physical laws. Combined with Corona's general lack of knowledge about the current modern world, as the last time he had been there was in medieval times, it was quite understandable for him to be so ignorant of something that seemed so obvious.
He looked to the "flashing red light" Rae mentioned. Out of curiosity, he lifted his finger and pressed it as if it were a button.