Disclaimer: I don't own CATS I don't think Emi does either, she's a going to be a vet though so beware of what you say or she might castrate your favourite cat.
This one's written by me.
The Foreign Office
Macavity was bored, which he didn't like, and neither did his henchcats but they're expendable so we don't care about them. He sighed and wondered how he could annoy the humans, humans are after all stupid creatures, they throw a stick away for a pollicle to fetch it, but if they want it back why throw the stick away in the first place? Macavity shook his head, humans were too stupid to contemplate, hmm maybe he should steal some of their important documents, that would surely annoy them.
Half an hour of planning and creating some alibis later Macavity found himself wandering the streets of London. He was heading for a building which his spies had told him contained some important human papers, it was called the Foreign Office, or something like that anyway. He managed to make his way inside and began wondering why they called it a Foreign Office, it looked pretty much the same like any other office building he'd entered before, only fancier.
Macavity entered an office that had a special plate on the door, anything different from normal is special and thus most likely more important. He began looking through various papers that had been lying on the desk that was standing in the centre of the office, or in one of the drawers of the desk. Papers that were currently more important would be more useful if kept nearby after all. Eventually Macavity had a total of 5 different documents to choose one from, too many would result into him leaving papers behind, like what had happened in the Admiralty. Macavity did not want a mess like that again, eventually he decided on a document which had the word treaty on it a few times, Macavity was well aware of the importance of treaties, he had many of them himself after all, they kept things from getting messy.
There were footsteps down the hall, Macavity cursed, he hadn't expected there to be a human at work this late. He took the paper and looked out of the door, checking to see if the human was nearby, thankfully it entered a different room. He noticed an open window just at the end of the corridor and quickly made his way to it, he jumped out of it just as the human returned from the room. By the time the humans realized what had happened Macavity was back at his hideout, doing some nice long division sums on his chalkboard.