Lead ♣8; Table Result 4S-1; IMPs
"It's your lead, RR", chivvied SB, South, "You are breaching 74B1 in your customary manner." "Sorry, I didn't realise," replied RR looking at the auction. "Was Molly's 4C Gerber?" he asked. "No", replied SB tersely. RR had recently attended OO's excellent opening-lead classes and recalled that trump leads were generally a last resort, and he also learned that Jxxx was usually to be avoided. He also remembered that doubletons had their downside as well but eventually selected the eight of clubs. SB tried the king from dummy, fairly quickly, but ChCh East, after a little thought, decided that the lead was unlikely to be a singleton, and encouraged with the three. SB ran the queen of spades, losing to the king, on which ChCh played the two of spades, suit preference for clubs. Both plays were pearls before swine as far as RR was concerned, but he thought a passive exit was best, as declarer was marked with the ace of clubs, and probably the queen as well as he had not finessed at trick one. He also thought ChCh could have the ace of trumps when he would get a club ruff. So he exited with the six of clubs and it was easy for ChCh to give him a club ruff for one off, as there was still a diamond to lose.
"DIRECTOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOR", summoned SB, in a particularly indignant tone. "ChCh used the UI that RR had taken quite a bit of time on his opening lead to conclude that it was not a singleton". He paused for breath: "Also East broke tempo in playing the three of clubs slowly on the first round. There were logical alternatives for East of playing his partner for a singleton club and for West of switching to a red suit when he won the king of spades."
ChCh had his defence ready. "There is no UI from the speed of the opening lead from RR. Even after seeing the auction, he has to work out whose lead it is, and, even, whether or not he is declarer." He continued. "We all know RR is hapless but ethical, and does not belong to the speed-of-light singleton school. And I am allowed to take some time on the first trick, especially as SB played quickly from dummy." He continued: "In addition, the silver bullet was my two of spades, requesting a club continuation." "No case to answer", he concluded.
The arriving OO was unsure. "How long did RR take to lead?" he asked. "About 30 seconds", replied SB, "and he could have known that this would distinguish between a doubleton and a singleton." ChCh disagreed: "Twenty seconds of that were spent discovering it was his lead and asking the fatuous question about Gerber", he added.
How do you rule?