Ping. I used to dread the noise of the class WhatsApp until I muted it. It can happen at any time day or night, announcing a message: a lost sock, a conspiracy theory or a parent rallying against some injustice, such as the children not being able to wear their PE kits to school – “please sign the petition”. It can send me into a panic: “Oh no, they need jolly jars for the school fair by tomorrow!” I yell, thinking, how am I supposed to find jars and fill them with brightly coloured sweets by then?
