Are you a normal person？
你是正常人嗎？

During a visit to the mental asylum, a visitor asked the director ..., "What is the criterion that defines a patient to be institutionalized?" "Well..." said the director, "we fill up a bathtub, and we offer a teaspoon, a teacup, and a bucket to the patient and ask him to empty the bathtub." "Oh, I understand," said the visitor. "A normal person would choose the bucket as it is larger than the spoon or the teacup." "Noooooooo!" answered the director. "A normal person would pull the plug."

參觀一所精神病院的時候一個參觀者問院長，“你們是用什么標準來決定一個人是否應該被關進精神病院呢？” “呃… …”院長說，“是這樣，我們先給一個浴缸放滿水，然后我們給病人一個調茶匙，一個茶杯和一個水桶去把浴缸里面的水放清。” “噢，我明白了”， 參觀者說。“一個正常人會選擇水桶， 因為水桶比茶匙，茶杯的體積大。” “錯了”，“院長回答”“正常人會把浴缸塞子拔掉”。