But the patient died

I went to the club last night and played with Brent. Playing against two good players, I held:
♠--- ♥J 10 ♦Q 10 9 4 3 ♣A K J 10 4 3.

At favorable vulnerability, I was first to act and opened 2♣. We are playing precision and this showed 11 -- 15 high-card points and (usually) six or more clubs (I could have five if they were headed by the ♣A K Q). My left-hand opponent bid 2♥ partner bid 3♣ and RHO bid 4♥.

You're up to bat.

I decided that there was too much of a chance that opponents could make their vulnerable game (I was right), and that 5♣ would go set less than their game (I was right).

But what if the opponents bid to 5♥? I don't really have much defense against that, either. I decided to get cute and bid 4♠. My thinking was that with a spade lead, I could ruff and increase our chances of defeating them if they bid on over 5♣.

The operation was a success! Over 4♠, the bidding passed out! I'll take minus 50 a trick versus their vulnerable game.

Here are all four hands:

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

In 4♠, I took one club and two spades for down seven and minus 350.

Even though they can make 4♥ (or 4♠ for that matter), and we go set 500 in 5♣ (according to Deep Finesse), this was a stone-cold zero. The score sheet showed two minus 300s our way, and some assorted 50s, 100s, etc.

Below is a shot of the results (with the names blanked out):