In a fable - like story, there was a vain king who was so proud of his 'penis - like' tower (a tall, phallic - shaped tower he had built to show his power). However, a great storm came and the tower was struck by lightning and completely destroyed. It was the best in terms of teaching a moral lesson about vanity and the power of nature.
Perhaps in a science - fiction story, an alien race has a device that can deconstruct any object. A human astronaut, as part of a cultural exchange, shows them a model of the human body and the alien accidentally activates the device on the 'penis' part of the model. It was the best because it led to an in - depth discussion between the two species about anatomy, taboos, and misunderstandings.