An elderly man was driving home in the early hours around two o'clock in London. The streets were empty and he was stopped by the police who asked where he was going that time in the night? "Oh" he replied. "I'm on my way to a lecture about alcohol abuse and the effects smoking has on the human body. Part two is dedicated to sleep deprivation and staying out late." The officer asked quizzically "And who'll be giving such a lecture this time in the morning?" to which the man replied "Oh, that'll be Mildred my wife!"