Larry is there to keep the rats under control I believe, the animal variety that is I'm not sure how good he is at that task, nevertheless I don't think he shouldn't be underestimated, he's more than just a house cat. I'm not sure you can follow him on Twitter which is the case with Palmerston, The Foreign Office Cat, also known to be quite spirited allegedly! Palmerston and Larry have regular run ins, well that's Downing Street for you. I guess they could join forces to keep the Boris dog under the paw where he belongs. Talking of which I thought "Bluster" might be a good name for such a hound.