London authorities are on high alert after an attempted break-in on Monday at Buckingham Palace. But maybe they're getting a little overzealous. Two days later, a man walking through the palace's gardens was stopped by two officers for questioning and to verify his identity. The suspected intruder? None other than Prince Andrew, the Duke of York and Prince Charles's brother, who was in town for an engagement. The duke graciously took it in stride, accepting an apology from Scotland Yard on Sunday and acknowledging that sometimes they "get it wrong." We'd say that's a bit of an understatement.