Opening Lead K♠. Table result 3NT-1.
This was the last board at a North London Club last night, and was surprisingly the first one at which South, who looks and behaves like a Secretary Bird, requested a ruling. Vicky the Vixen, the club TD, had a quiet night, although she did stop two of the club's better players loudly discussing the difference between a Merrimac Coup and a Deschappelles Coup during the half-time tea-break. This simple-looking hand was soon over. Declarer ducked the spade lead, but West, the club's weakest member, continued the suit and when East, a good player, ducked two rounds of clubs, the contract drifted one off. Walter the Walrus, North, said "Sorry, partner, had to bid game with 10", and continued, looking at the bridgemate, "a bottom for us I am afraid, everyone made it, most with an overtrick". "I don't see why", replied RR,"I cost a trick with my opening lead."
"Nonsense," replied SB, turning to the rabbit. "What possessed you to lead the king of spades, anyway?". "Well", RR replied, "Oscar, who was watching earlier, said that one should lead the highest card in one's hand if a gambling 3NT is passed out".
"Rubbish. I know the deal in question," replied SB, "but that was completely different. There you held ♠Kx and no other high card, so I agree with the Owl that the king of spades is marked after the auction 3NT(opening bid)-All Pass, although finding your partner with AQTxx was a bonus. Surely, not even you are harebrained enough to think that has any relevance here. And, come to think of it," continued SB, "you had UI from another source. You could have worked out that this was the board that triggered the discussion in the bar at half time between Charlie and his partner about the Merrimac Coup, and you breached Law 16C1 in not telling the TD that possibly valuable information had been received. You could also work out that none of the 23 boards to date had a potential Merrimac or Deschappelles Coup, and there was a logical alternative to the king of spades lead and the latter was demonstrably suggested by the UI".
"Director, please," he bellowed.
So how do you rule? And, more importantly, is it "harebrained" or "hairbrained"?