Here on the Wet Coast (not a typo) of Canada, we have many Chinese-Canadian players in the local bridge scene, both young and old. It was two of the latter, Mr. Li and Mr. Tu, who produced the questionable result on this hand:
Most pairs played in 4♠ making five. The E-W pair that played it after Mr. Li and Mr. Tu, however, saw (on the traveler) that their result was 3NT by E-W (I forget who, which is perhaps a good thing...) making six! They called me over and asked me to investigate, since making twelve tricks in notrump off the ace and king of clubs and diamonds seemed "physically impossible." I replied with the line from the original Pelham One Two Three: "you'd be surprised what's physically possible," and went off to have a look at the hand record.
My experience with these is that if the score entered on the traveler is not inconsistent, it is right most of the time, no matter how improbable it seems given the cards. But this one stumped me, so I went to the table to investigate, and had a look at the scorecard of Mr. Li, who held the South cards. The players who had asked were playing the next deal when I returned. I told them to play it out and hoped they would do so quickly before I started giggling.
Once they were done, I made this announcement: "Mr. Li's scorecard clearly reads 690, and also includes three angry-looking Chinese characters, followed by an "A" and a diamond symbol."
Somehow, the ace and king of diamonds had both made their appearance at trick one, and North chose the wrong suit to continue.

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