To be fair, Sarah Palin has also been tricked by prank callers. King Edward VII Hospital, where the Duchess of Cambridge is pregnant and being treated for hyperemesis gravidarum, said on Wednesday that they “deeply regret” giving out personal information about Catherine to prank callers from an Australian radio station. Presenters from 2Day FM posing as the queen, Prince Charles, and corgis got personal information from a private nurse of the duchess’s. The hospital’s chief executive called it a “foolish prank that we all deplore,” while the palace refused to comment. At least the nurse has some company: all of the royal family has been prank-called before.