Golfer in a match or stroke play event watches another player in his flight play a shot into a difficult green in difficult conditions.

Golfer speaking in a language other than English says, "Good shot, wonder what club he played" Member of the public in the gallery wishing to help his fellow countryman tells him in his own language what club was played. Nobody else is any the wiser - The Golfer has broken the rules of the game, unless someone else who understands the language has heard the exchange no-one is any the wiser.

If the common language on the course is english the situation never arises.