A man was playing a game of golf, and on hole 16, he hit the ball right 
into a field of buttercups. As honest a golfer as he normally was, he 
picked up the ball and laid it next to the flowerbed to avoid destroying 
the beautiful buttercups. A fairy comes down and says "thank you for not 
disturbing my buttercups. For that I shall make sure that you always have 
a full supply of butter".

"Thank you," the golfer replied, "but where were you last week when I hit
the ball into the pussywillows?"