Professor Tom was going to meet his students on the next day, so he wrote some words on the blackboard which read as follows: "Professor Tom will meet the class tomorrow." A student, seeing his chance to display his sense of humor after reading the notice, walked up and erased the "c" in the word "class." The Professor noticing the laughter, wheeled around, walked back, looked at the student, then at the notice with the "c" erased--calmly walked up and erased the "l" in "lass", looked at the flabbergasted student and proceeded on his way.

Tom教授打算第二天與他的學生見面，因此他在黑板上寫道：“Tom教授明天將和大家見面”。

一位學生看到這條通知后，覺得展示自己幽默感的機會來了，就走上前，將“class”中的“c”擦掉，教授聽到笑聲，轉過身走回來，看了看那位學生，又看看被改動過的通知，不動聲色地走上前，把“lass” 中的“l”擦掉，看了看那位目瞪口呆的學生，教授揚長而去。