What jokes does your teacher make in class?

I had a chemistry teacher in my freshman year of high school, a beauty. Although she is said to be a beauty, we still don’t listen in class and sleep when we should. Once she told us a story: "Let me tell you a story." She suddenly woke up halfway. "The Dragon King wanted to recruit a husband, and the condition he proposed was that the weight should reach one thousand kilograms. A big turtle went, and the shrimp soldiers and crab generals weighed him and found that he only weighed 999 kilograms. Another little seaweed went, and the little seaweed did not overestimate his ability, and only weighed 999 kilograms. One pound. So the little seaweed discussed with the big turtle: Since you are only one pound short, let me help you! Let me get into your ear, so you have a thousand pounds of seaweed in your ear. The big turtle went to weigh it again, and this time it met the standard. But the Dragon King felt strange that it was only 999, but now it was a thousand, so he ordered the shrimp soldiers and crab generals to search the turtle's body and shake out the small seaweed in the ears. Asked Xiao Haizao, what are you doing in his ears? Xiao Haizao replied: I am telling a story to the bastard. "