There was a letter to the Daily Telegraph last weekend which depressed me more than anything I’ve read in ages. It reported the visit by a social worker to an elderly woman who made her a cup of tea. The young social worker was shocked by what she saw. Not only did this bewildered old woman insist on using leaves rather than a bag but she first poured some hot water into the pot, swirled it round, then wasted it by putting it straight down the sink.