《笑林广记·殊禀部》
呆子问他人道：  何往 是什么意思？ 那人知道他呆蠢，便有意开玩笑说：  何往 是骂你的话。 
乃记 何往 二字，以问人，人知其呆，故为戏之曰： 此恶语骂兄耳。 
The foolish man asked another person, "What does 'where are you going?' mean?" The person, knowing he was foolish, wanted to play a joke on him and said, "Where are you going' is a phrase used to insult people."