John McEnroe is one of tennis’s greatest characters and he taught me some wonderful lessons.

One day after working with him he went to hit balls on the driving range. First ball ok, second ball bad… Third ball bad! Suddenly he exploded with profanities at the top of his voice. He obviously saw the shock on my face,  he winked at me and said – ‘Don’t worry Doug – it’s my brand, it’s what they expect me to do’

Up and down the driving range, other celebrities started calling – Oh, hey Mac – didn’t see you there!