<正> The story goes that two friends were walkingthrough the desert.During some point of the journeythey had an argument,and one friend slapped theother one in the face. The one who got slapped was hurt,but withoutsaying anything,wrote in the sand;“Today my bestfriend slapped me in the face.”They kept on walking until they found an oasis,where they decided to take a bath.The one who hadbeen slapped got stuck in the mire and starteddrowning,but the friend saved him.