Why is the joke of bamboo pole, pig liver and pig ear?

Because the father asked his son to buy bamboo poles and mistook them for pig liver. Later, I was taught to buy the wrong things and was accused of having no ears. I thought my father had made a joke when he found out that he had stolen the pig's ears and offered them.

Jokes about bamboo liver and pig ears;

Once upon a time, a father told his son to go to the market to buy bamboo poles, and his son called them "pig liver". My son went to the market, bought some pig liver, and secretly bought two pig ears with the extra money, ready to go home and enjoy it himself. At home, the son hid the pig's ears in his pocket and gave the pig's liver to his father.

As soon as the father saw that his son had misheard him and bought something wrong, he was so angry that his lungs would explode. He asked his son, "Where are your ears?" "My son was shocked and didn't understand why his father knew he bought pig ears. I had to take out the pig's ear and give it to my father and say, "Here's the ear." "Father was so angry that he squeezed a sentence through his teeth:" You are still so selfish. "

The son bought the wrong thing because he misheard his father's instructions. Because my father accused me of not having long ears, I thought my father found out that he had stolen pig ears, so I gave them away guiltily. It's ironic.