Larry the Cat outside 10 Downing Street last night. "He's got the Hump!" said the security men. Despite the efforts of the security men, myself, and the Downing Street staff we could not persuade the premier mouser into his home. He lay dozing out on the balcony by the front door to Downing Street. This took place yesterday when I and other colleagues went over to 10 Downing Street. I still find walking into Whitehall's inner sanctum an incredible experience.