 The Gricean phenomenon is a real one. On anyone’s account of conditionals, there will be circumstances when a conditional is justifiably believed, but is liable to mislead if stated. For instance, I believe that the match will be cancelled, because all the players have ’flu. I believe that whether or not it rains, the match will be cancelled: if it rains, the match will be cancelled, and if it doesn’t rain, the match will be cancelled. Someone asks me whether the match will go ahead. I say, “If it rains, the match will be cancelled”. I say something I believe, but I mislead my audience — why should I say that, when I think it will be cancelled whether or not it rains? This does not demonstrate that Hook is correct. Although I believe that the match will be cancelled, I don’t believe that if all the players make a very speedy recovery, the match will be cancelled.