An insect (虫、昆虫、卑鄙的) repellent（抵抗、驱虫剂、令人厌恶的） salesman tried to sell his product to a farmer. http://www.xue90.cn来自《幽默学英语》网
He said he wasn"t interested because he hadn"t seen any bugs or insects on his farm for years.
The salesman indicated（指出、表明） he had a wife and four kids and really needed the money.
The farmer still didn"t think he needed any insect repellent but he felt sorry for the salesman and said,I"m so sure there aren"t any insects around here,
if you"ll strip naked, I"ll tie you to my barnyard（谷仓空场） fence for the entire night.
When morning comes, if you"ve got even one insect bite on you, I"ll buy every can of repellent you"ve got.
The salesman was elated （兴高采烈的）and readily agreed to being tied up naked.
That night, the farmer tied the naked salesman to the barnyard fence and went to bed.
Several times during the night he thought he heard the salesman moaning and groaning.
However, when he went out the next morning, the salesman didn"t have even one bite or scratch on him.
The farmer asked,What was all that moaning and groaning about last night?That was the worst night of my life,
the salesman replied,doesn"t that damn calf have a mother?