One of the things I miss when I’m away (apart from my bed, that is) is my electric shower. You know the type I mean: flick a switch and water comes out, at the rate you want and, more importantly, at the temperature you want. Too many times I’ve had to wrestle with showers that have lives of their own. You know the sort I mean: water dribbles out at a rate snails would be proud of, and at a temperature that would make volcanoes seethe with envy. Is it too much to ask for a little consistency around here?