there's a new and frequently-crying baby in one of the houses on the back row who makes a noise that doesn't quite sound human - more like a cat. and that's what the family kept thinking it was, until they ran into mother and baby in a pram out for a walk. as the adults exchange pleasantries, the baby begins to cry.

sarah: mummy! she's the cat that daddy's always talking about!
(all the adults panick.)