Out of the Mouths of Babes - 2

While I was researching this topic, Master S-E was doing his homework. Ecology Studies (WTF? It's amazing how soon the indoctrination starts) and Maths. Count the electrically powered items in each room in the house and then make a graph.

However, he also had to put them in categories. Lights, computer, heating etc. Out of the mouths of babes ... "In", Mrs S-E asked, "which category would you put a telephone?" Absolutely no hesitation - "entertainment". Comes of having an older sister, I presume. Thank God for zero-tariff phone deals, is all I can say.