A caterpillar falls out of the tree and lands on the Italian's arm. The Italian picks up the caterpillar and throws it at the Jew. The Jew picks the caterpillar our of his hair and throws it at the Somalian. The Somalian picks up the caterpillar and eats it.
A bit later another caterpillar falls out of the tree again and lands on the Italian. Again the Italian throws it at the Jew, who catches it and asks the Somalian, "Do you want to buy a caterpillar?"