In Great Britain, kids who can document their attention-deficit hyperactivity disorder (ADHD) at amusement parks can cut to the front of the line. But this effort to ease the wait for ADHD children has sparked a debate about the fairness and the advisability of the practice. In this article from the BBC, a reporter gets different perspectives from a psychiatry professor who believes the practice may do more harm than good, and from a national ADHD spokesman who says the practice benefits those...