Who can give a joke that can be told at the dinner party?

Once upon a time, there was a barber, and his craft was not bad. Later, fewer and fewer people shaved their heads because they often left cuts on others' heads. Finally, no one came to shave their heads. If you don't shave your hair, you won't have a source of income. The barber had to put up a notice: Dear folks, if I shave the villagers' heads again, I will provide a meal for the injured. Everyone was dubious. A young man didn't believe in evil and came to shave his head. The barber left eight cuts before shaving halfway. The young man repeatedly reminded the barber: remember to provide me with eight meals, old man, but don't forget. The barber accidentally scratched several more wounds. The young man cursed bitterly: I have to feed myself again, old bastard. If you can't shave well, don't hang around here, you bastard. The barber felt uncomfortable. The young man not only counted the meals in shame, but also cursed: OK, I will feed you all my life. After that, I slashed the young man's head with a razor.