Is it a joke that others don't want to hear?

One possibility is that he can't speak, inadvertently offended people, and can only alleviate the embarrassing situation; Another possibility is that it is really a joke. If you find yourself unhappy, find a step quickly. Need specific analysis of specific problems. If it's not a matter of principle, don't worry about it. If you touch the bottom line, you can seriously tell him not to do it in the future.