Robert Downey Jr. has been in the spotlight for three decades, but that doesn't mean he's an open book. In a recent interview for his upcoming movie, Avengers: Age of Ultron, he became visibly uncomfortable when Channel 4 news reporter Krishnan Guru-Murthy started asking questions about his personal life. He tried to be a good sport, but he snapped after the reporter asks about his relationship with his father. "I'm sorry, what are we doing?" he said. "I'm just asking questions, that's all," Guru-Murthy replied. Downey Jr. then just got up, said "Bye," and walked out. The actor is very selective about the press he agrees to do for films, so it's a bummer for Channel 4 that they're probably off his list from now on. Check out the video above; the awkward part starts at 5:35.