Zen Koans — part question, part anecdotes — tend to follow a common form. A student asks a master a question; or several students argue something amongst themselves. Some sort of illogical conclusion is reached, at which point somebody is enlightened.
So far, so good. But even extremely advanced and obscurantist mysticism is subject to people taking the piss:
Three Zen students came out of a Dharma talk.
“What did you think of Roshi’s talk today?” one of them asked. “When he talked about true and false practice, I thought that was kind of dualistic, wasn’t it?”
“Ah,” said the second, “but your even saying that is dualistic itself, don’t you see?”
“Look who’s talking,” said the third. “I’m glad I’m not dualistic like you guys!”
From the rather hilarious Broken Koans collection.