My surname is not Jiao, so why not (joke story)

In the 1960s, Uncle Jiao's family of four lived in Guangzhou, with a living area of ??less than ten square meters. Once, Uncle Jiao was admitted to the hospital due to kidney deficiency and enlarged anterior cleft gland. The disease has not yet recovered, and Uncle Jiao is anxious to be discharged from the hospital because he is reluctant to spend money. No matter how much the doctors or nurses tried to persuade me, they would not listen. Helpless, the doctor had no choice but to ask Nurse Wang, who helped him take medicine and give injections, to explain to him what he needed to pay attention to when he went home for treatment, otherwise he would lose all his efforts. Following the doctor's instructions, Nurse Wang said to Uncle Jiao:

"I hope you will never have sex after you go home."

"My whole family lives in one room. Where should I stay?" Uncle Jiao asked puzzledly.

"What I mean is to ask you not to share the same bed." Nurse Wang wanted to make it clearer.

"I'm telling you not to have sex!"

"Ahem! I'm not telling you not to have a surname Jiao, I'm telling you not to have sex!" In order to make Uncle Jiao Understand that Nurse Wang deliberately made the sound between the words "Don't have sex" very long. Unexpectedly, Uncle Jiao still couldn't understand and said:

"I'm telling you not to do that with your wife!"

"Oh! Don't worry about this, I don't have that a long time ago Overthinking it!”