A Missionary in South America teaches native indigenous tribesman to English language. They paddling on a boat on the Amazon River and the Missionary teaches him: "This is a river. This is a forest. These are the trees. There are leaves on them. " Down by the river they saw a couple making love. Missionary blushes and tells to a guy in the boat: ”They are riding a bicycle.” Native takes bow and an arrow from boat and takes a shoot at guy who makes love to an woman. Missionary is horrified: “ What are you doing?!?” Native responds: “He rides my bicycle.”