Good week for: Human calculators, after Frenchman Alexis Lemaire, 27, correctly calculated the 13th root of a 200-digit number in his head in a world-record 70.2 seconds. The correct answer: 2,407,899,893,032,210. “I’m very proud of my brain,” said Lemaire.

Bad Week for: David Leggat of Scotland, who spent four days trapped inside a men’s bathroom. The bathroom, at a private club that had closed for the winter, was freezing cold, so Leggat, 55, kept himself alive by plunging his feet into a sink he filled with hot water. “The only thing I regret,” Leggat said after he was found, “is not getting trapped behind the bar.”