1. The sommerlier pours. You sip. You hesitate. Good move. Never say yes to a wine until you're sure it's sound. Try it a second time. A third, minutes later, if you still have doubts. Like sex on a first date, you'll regret it if you're not sure.
2. So much should not be asked of a waiter: Stock market tips. Medical advice. What wine to drink with your meal.