This week I was playing bridge, specifically as dummy in a no-trump contract. With two tricks to go, the lead was in dummy, and my partner said "Play either, they're both losers." Actually she had miscounted, so that one lead would win a trick, and the other would lose both. Law 43 says 'Dummy may not participate in the play, nor may he communicate anything about the play to declarer', so the obvious course of saying "actually, it makes a difference; which do you want?" is specifically forbidden. The same Law says 'dummy should not initiate a call for the Director', but I might have stretched a point and asked the director to choose one of the two at random, had I not been acting as director myself that afternoon.
Does anyone know which card I should have played? Laws or EBU rulings preferred: rulings by other bodies such as ACBL useful as supporting evidence.