What's the joke about this young man going out to work? Why don't we understand?

Everything upstairs is a misunderstanding. . . There are two jokes in this joke. The first one is the sentence "it will bring disaster to our rough village". The word "rough" is improperly used and should be changed to "all". Funny point 2. Pay attention to the last sentence. In fact, when you saw this joke, you were already called a son by the person who told you the joke, which means that your father told you the joke and had an affair with your daughter-in-law, and then the rest was almost the same as upstairs.

Obviously this is a swearing joke. The people upstairs are too shallow.