Is There a Leftist Joke?

A lot of jokes do the leftist thing because they, if we've talked about like this internal contradiction and not about creating an enemy. So I can say that I think it's great. And this is a joke from the book. A visitor goes to a monastery to just check out life. See how it is. And one monk agrees to show him around. He shows him around during the day and so he finally at the end of the, toward the evening, they come together for dinner in this big hall  and they sit down to dinner. All of a sudden a monk, a random monk shouts out 15 and everybody just busts out laughing. That doesn't seem funny.