Cat flap

We got word that our house in London was infested with fleas as we drove north on holiday in glorious weather through the borders into Scotland. Sid, who very kindly and conscientiously looks after our cats while we are away, sent a series of increasingly alarmed text messages, in which he informed us that he was suffering flea attacks of unbridled savagery on his ankles every time he went into the kitchen or sitting-room.