Late one night the police were following a car．The driver of the car was driving immaculately，never going over the speed limit，giving the correct signals and even being courteous to other drivers．

Eventually the police car pulled alongside and an offlcer said to the driver，“Excuse me，sir．You’re not in trouble．We just wanted to compliment you on your exemplary driving．”

“Thank you，officer．”replied the driver，“I always make a point of driving especially carefully when I’ve had a few pints．”