杯弓蛇影
晉朝有個叫樂廣的人，愛喝酒。
一天，他邀請朋友到家中來對斟對飲。
忽然，朋友看見酒杯里有條蛇影在游動。
他受了驚嚇，回去便一病不起。
請醫服藥，都無起色。
樂廣跑來看他，問明起病的緣由。
樂廣聽後一把拉起朋友往家走。
他讓朋友坐在原處，斟滿酒問：“有蛇影嗎？”
杯子裡還有“蛇影”！樂廣隨手取下牆上的弓。
這次，“蛇影”不見了！
“杯子裡原來是弓影呀！”朋友的病情頓時好了！
a false alarm
In Jin Dynasty there was a man named Yue Guang who was fond of drinking alcohol.
One day, he invited a friend to his house to drink together.
Suddenly, his friend saw the reflection of a snack swimming in the goblet.
He got so much frightened that he took ill in bed after getting home.
And neither any doctor or any medicine could cure his illness.
Yue Guang came to see him and asked about the cause of his disease.
When he got to know the cause, he pulled his friend from the bed immediately and took him to his house.
Yue Guang made his friend sit where he used to, pouring a goblet of alcohol for him, and asked him," Is there any snake reflection in the goblet?"
There was still a "snake reflection" in the goblet! Yue casually took away the bow hanging on the wall.
This time, the "snake reflection" disappeared.