Alexandra Ripley said this quote

Charlestonians had a particularly vicious and cunning game, developed after the War. They treated outsiders with so much graciousness and consideration that their politeness became a weapon. 'Visitors end up feeling as if they're wearing shoes for the first time in their lives. It's said that only the strongest ever recover from the experience. The Chinese never developed a torture to match it, although they're a very subtle people.