"Much as the modern French duel is ridiculed by certain smart people, it is in reality one of the most dangerous institutions of our day. Since it is always fought in the open air, the combatants are nearly sure to catch cold. M. Paul de Cassagnac, the most inveterate of the French duelists, had suffered so often in this way that he is at last a confirmed invalid; and the best physician in Paris has expressed the opinion that if he goes on dueling for fifteen or twenty years more--unless he forms the habit of fighting in a comfortable room where damps and draughts cannot intrude--he will eventually endanger his life."