Maastricht, Netherlands, Olympiad 2000. Unfortunately the Egyptian west on this hand has remained anonymous. He paid a high price for his greed, being clearly unfamiliar with the expression 'to have a goose on a string'. In bridge the expression means: 'Do not warn the opponents by doubling when they have ended up in the wrong contract, if they can still bid a better contract'.
Germany's Dirk Schröder gratefully accepted the Egyptian present.

E/NS		♠	A K Q 4
		♥	J 6 4
		♦	7 5
		♣	A J 6 2
♠	9 6 3			♠	10 8 7
♥	K Q 8 7 2			♥	-
♦	8 4 3			♦	K 10 9 6
♣	Q 3			♣	10 9 8 7 5 4
		♠	J 5 2
		♥	A 10 9 5 3
		♦	A Q J 2
		♣	K

Schröder knew he was (too?) optimistic when bidding 6♥. North's 5♥-bid showed two key cards (out of five: the four aces and trump king, ♥K therefore) and denied ♥Q. Schröder knew therefore either ♥K or ♠A was missing. If north had neither ♥K nor ♥J there would be two heart losers (even with ♥J in north that was possible, as it shows). And if north did have ♥K (possibly only with two small hearts), south risked losing a heart and ♠A. Not to mention a possible diamond or spade loser.
After west's (naive) double Schröder concluded north had ♠A and bad hearts. Thus Schröder fled to 6NT.

West doubled this contract as well, albeit a little less confidently. He led ♣Q to south's king. Schröder crossed to dummy with a spade and took the diamond finesse. When it succeeded, his prospects looked a bit better. He cashed all his black tricks, ending in dummy, and repeated the diamond finesse.

He was down to ♥A109 and ♦A in hand en ♥J64 ♣6 in dummy.
Now he had to choose: if west (who had done well by discarding hearts on the fourth spade and third club) had begun with 'only' four hearts, he would now be down to ♥KQ bare and two diamonds. The winning line then would be to play a heart (the report does not state whether east had played ♦K in trick two, that would have been a nice card).
But Schröder 'read' the position well: west probably had doubled on all five hearts and therefore now still had ♥KQx and one diamond. First Schröder cashed ♦A and then played ♥9 from his hand. West won but had to play back in the heart tenace: twelve tricks and 1680 points to NS. A lot more than the -100 they would have scored by playing 6♥ - undoubled(!).

A nice 'detail': the double on 6♥ not only drove NS to a makeable contract but also pointed out the winning line of play in 6NT.