A reader from Milnsbridge who, for modesty's sake, I shall call Allen says: “Regarding your fitness regimen, I remembered reading somewhere that sex burns up 700 calories an hour. I pass this information on to you as it not only keeps the body in trim but it also helps in reducing electricity bills.

“Being a pensioner myself (as of last Saturday), in the present financial climate my wife and I are having to make savings wherever we can. I hope this is of use to you.”