" WHO THE HELL'S AT THE DOOR?
When you are young your favourite time for sex are often first thing in the morning or last thing at night,but as you get older your body clock changes.You can't function in the morning until you have had breakfast and at night you are so tired at the end of a long day that you just want to go to sleep.On your agenda,sex comes somewhere below running a marathon or wrestling an alligator. "

― Geoff Tibballs , The Grumpy Old Git's Guide to Life