When the narrator and his mistress arrived at a hotel, they were taken aback to see his father-in-law’s car at the door.
This awkward, potentially dangerous situation presented him with an immediate challenge.

He was worried that his father-in-law would catch him with his mistress, so he called off the meeting and informed his friend that it wasn’t a good day. After she left, the narrator became irate and broke both of his father-in-law’s car’s mirrors before leaving for home.

The narrator went to see his father-in-law the following day to boast about the missing car mirrors. The narrator questioned why he was shocked when his father-in-law became agitated.His father-in-law expressed his annoyance in a frustrated manner. His wife returned the car without mirrors after he lent it to her.

The story is humorous because of the irony. The narrator got into a new argument with his father-in-law, who was unaware of the reason behind the missing mirrors, in order to get out of an awkward situation.

This joke makes readers laugh by jokingly addressing the negative effects of snap decisions and the humorous misunderstandings that can arise in difficult and disagreeable situations.