I’m an insomniac. I am rarely asleep before 3am. I have a friend ‘Colin’, who occasionally drunk dials me late at night. He’s never managed to wake me. Once I was actually about to go to bed. It was 4.30am. Lately, when the phone rings, I would like it very much to be Colin posing a difficult philosophical question with that complex, sozzled mind of his, because recently, it’s Dad.