@dobiapps.com: Daily challenge: Mastering authentic English expressions. Day 227: "Are you insane?" This common phrase is used to express shock, anger, or disbelief when someone does something outrageous or incredibly risky. While it's frequently heard in movies and TV shows, be cautious using it in real life as it can be quite strong and offensive. #AmericanEnglish #English #EnglishSpeaking #AmericanTVShows #EnglishLearning