Aamir Khan revealed that he didn't want to do '3 Idiots' because he thought the public would laugh at him for playing an 18-year-old boy. "I was turning 44...It'd be weird. I told Rajkumar Hirani to take three youngsters but he was after me," Aamir said, adding, "Raju told me, 'You've done films that could have never been a hit'."