A guy visiting a fairly rough (down market) golf course for the first time was getting ready to tee off on the first hole.
"Keep your head down," he heard a voice shout to him. Not wanting to get into any bother with the local thugs, he kept his head down.
"I said keep your head down!" So he lowered his head further, and continued to address the ball.
"No, I said keep your head right down dammit!"
The golfer now had his head so low his chin was touching his chest. He played the ball and it dribbled about 30 yards down the fairway.
In a rage, he turned around to find out who the idiot was that gave him the advice, only to find that his clubs had been stolen.