Professor Godwin,feeling unwell,wrote on his bedroom door this notice:"The professor will be unable to meet his classes this evening." A student rubbed out a letter and made it,"The professor will be unable to meet his lasses this evening." Godwin,perceiving this,turned the tables by striking off the next letter,and making the notice read;" The professor will be unable to meet his asses this evening.
译文：戈德温博士感到不舒服,于是写了张便条贴在卧室门上：“晚上博士不能来上课了.”一学生看后将一字母擦去,意思就变成了：“晚上博士不能来见他的情人们了.”戈德温博士看后,心生一计,又擦掉一个字母,最后便条的内容就成了“晚上博士不能来见他的蠢驴们了.”
（注：class班级；lass情人；ass蠢驴,关键在表演时可重读这些词,如果不熟悉的话让观众说出意思,不然毫无效果）