South is a pro and arguably the best player in the tournament, North is a client, intermidiate and not very experienced; they are among contenders for the top spot. EW are both good advanced players, they are contenders too (in fact, EW won the tournament and NS finished in the third place).
South choose to open off-shape 1NT in second hand. After jump overcall by West, North took a while before passing (stop cards are not used in Russia, but a bit of a pause after skip bit is considered normal; here it was agreed that North thought longer than normal, but not extremely long, "about 20 seconds"). In duly course, 3♦ was made +2 (dummy sported 5-card fit and 7 PC) and TD was summoned. He established BIT, but kept the result (unfortunately, I don't know his exact reasoning; at least polling peers was not a realistic option due to small field). EW appealed.
Predictably, EW argued that BIT makes bidding much more attractive then passing and that result should be reversed to 3♣, down two, +100. South claimed that because of his off-shape opening, 3♣ are probably non-standard contract and because of form of scoring pass is not an option; between bidding on and doubling hesitations suggest double, so he choose bidding on.
AC found that NS has no clear agreement about double from North in this position (whether it is for take-out or for penalties), so it seems that the argument that hesitations clearly suggest double is valid; anyway, since 3♣ doubled produces +300, the only relevant question is whether pass is a logical alternative for South.
Ethical considerations aside, what do you think about LA problem?