I wonder whether you have a chance to read Umberto Eco's The Name of the Rose which is translated into Thai as well, you will see the reason why the Catholic priest did not want priest or people to read Aristotle's Poetic II. Laughter once starts, it means that one can laugh the power of God. Parody, irony, were used for retaliating the powerful figure in history. However, when it comes to the question of sacred, and of course, those major figures in history can be sacred in many societies, so such kind of laughter would not make the believers happy, especially it has been done by the opposition. The Danish cartoon on Muhamad is the case in point.