It crawled into this man’s ear
It is a common storyline in horror films to have something crawl into someone’s ear and drive them insane. Fortunately, if something gets into your ear in real life, it will not make you crazy. But it will cause you mild annoyance.
However, that does not mean it will not feel like your worst nightmare come true. What is worse, the only solution is to go to an emergency room and have a professional remove it, which takes time and patience.