I don't understand a joke. ...

A patient was pushed into the operating room. He asked doctors and nurses to take off their masks. The doctor said, "This is against the regulations." The patient said, "Don't lie to me. Are you afraid that I will admit my mistake? "

Explanation: The patient thinks that the doctor is afraid of treating the patient with problems or death, and won't let others recognize that he is responsible. In fact, wearing a mask is to prevent the virus from infecting them.

Comments: Jokes that ordinary people can understand are not very funny, but jokes that readers can ponder around are classics!