After an evening out, Donald was in no shape to drive, so he sensibly left his car parked and walked home. As he was staggering along, he was stopped by a policeman. ‘What are you doing out here at three o’clock in the morning?’ asked the police officer.
‘I’m on my way to a lecture,’ answered Donald.
‘And who on earth, in their right mind, is going to give a lecture at this time of night?’ inquired the law sarcastically.
‘My wife,’ slurred Donald grimly.