K for Kount by Foxymoron

Kount is the world's largest company for detecting credit-card fraud, used by many of the top banks and finance houses, but the expression K is for Kount is a bridge term, linked in with A is for attitude. The theory is that if you lead the king of a suit you have bid, partner gives count (yes I know it is spelled with a "c") and if you lead the ace it asks for attitude. That would have avoided the bad result that Harvey and Doug experienced on this hand from last night:

At our table, East-West sacrificed in 5Cx, which had to go one off a bit unluckily, when the defence cashed their three major-suit winners. This was a "phantom sacrifice" as 4H should be beaten.

At this table, West decided to defend 4H but put all his eggs in one basket by leading his singleton spade. This was poorly considered, as his Qx of hearts suggested that declarer would be able to draw trumps easily and so it proved; it would probably only succeed if partner had the ace of spades. A better defence was to lead the king of diamonds, asking for count in that suit. Now East plays the three of diamonds and South the five. Now West knows that East does not have four diamonds, as with JT32, East should play the second card, the ten, but East could easily have three diamonds. West cashes the ace of diamonds and all becomes clear when East follows with the two and West can give East a diamond ruff, for a very good board. If East has four diamonds, there is a lot to be said for him giving false count here, as he can see that South will only have one, and he does not want his partner to attempt to cash the ace of diamonds.

The phrase "putting all his eggs in one basket" was said to be first used in the novel Don Quixote (1612 in English), where it was written “It is the part of a wise man to keep himself today for tomorrow, and not venture all his eggs in one basket.”