Another of Socrates' students, Xenophon also wrote about Socrates. Aristophanes, a person who wrote brilliant satirical comedies, wrote about him in play called "The Clouds". Socrates was an easy target for satire. He walked barefoot, and with a swagger. Sometimes he stood in a trance for hours. In "The Clouds" Socrates is a crazy person who tries to scam people out of their money. Plato wrote that Socrates taught for free.