In a 1999 district-level qualifier for what was then the North American Open Pairs, I dealt myself the following hand, red on white at matchpoints:
A K Q J 10 9 - - K J 9 8 7 5 3
What do you do with this thing? I chose to open 1. Not 1, because I am much more interested in partner's club holding than his spades, and certainly not 2, because I expect a lot of bidding and want to get my suits in. I was not surprised when LHO overcalled 4, passed back around to me.
I bid 5. That woke everyone up. LHO asked my partner, Eugene Hung, what that meant. "I have no idea," said Eugene.
After considering, LHO tossed in a double, and Eugene bid 6. RHO bid 6 I passed. It had to be forcing after my 5 bid. Eugene bid 7.
LHO doubled and led the A, whereupon Eugene tabled x x x x x x x x x A Q x x
What a partner! I quickly claimed thirteen tricks for +2330.
This was not quite a top. Another table conducted a similar auction, except that the player with my cards got greedy and redoubled 7. The opponents got cold feet and ran to 7, whereupon my hand bid 7 --- introducing the suit for the first time at the seven-level. This too was doubled and redoubled, and made for +2940 on the diamond-ace lead. However, opening leader could have set 7-XX by giving his partner a club ruff! Meanwhile, spades broke 2-1, so 7 was laydown.