The three-martini lunch may be over, but the business dinner is here to stay—and it is a prospect that fills some executives with horror. For those who find the multiple rows of cutlery and wine glasses baffling, or who keep forgetting which side-plate is theirs, help is on hand to decode the hidden rules of etiquette. On the hills overlooking Lake Geneva, a company offers executives an extra layer of social polish to boost their confidence—and, perhaps, their career.
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