In most of the world it is usual to fasten a rope at the top and climb down. In India, however, a few gifted mystics are said to be able to toss a rope into the air and climb up. So it is appropriate, perhaps, that the bridge magic I am about to report should have occurred at an Indian bridge table.
It isn't always easy to recognize the situation—and then it takes a great deal of courage to make the sacrifice—but if winning a trick in your hand is sure to give the declarer his contract, get rid of the card that will ruin you. Trust that partner will be able to win the trick and make more effective use of the opportunity to make the next lead.