It's happened too many times to remember, and the disappointment is always piercing, but you learn to move on. A bottle of wine--a special one, maybe it's very old, maybe you carried it back in your suitcase from France, maybe it's very expensive. You save it for a special occasion. You dust it off and present it to your guests. You remove the foil, savoring every moment of the process, licking your lips in anticipation. And then you pop the cork and get a whiff. Damn, it's corked. Nothing you can do about it. Have to move on.