Based on the search results, there is no information about what happened to Greg Gutfeld last night. The most recent news article about him is from November 11, 2023, and it does not mention any recent events or incidents involving him. The Fox News website has a list of recent episodes of his show, but the most recent one listed is from November 10, 2023. His Twitter account also does not have any recent updates that indicate something happened to him last night. The only relevant information found is from an article on Sarkari Exam, which addresses concerns about his absence from his show and rumors about his health. However, the article confirms that he is not in the hospital and is currently on vacation.