Leslie is hoping to obtain a piece of land for free so she can turn it into a park. Ron taunts Leslie about her $0 bid for the land because typically people expect money in exchange for goods and services. This can be a good illustration of the medium of exchange function of money, but can also lead to a deeper discussion of externalities.
Tom isn’t happy with Mona-Lisa anymore, but he isn’t brave enough to break up with her. He decides to seek out help from his previous girlfriend, Ann, but it’s going to cost him. Ann initially refuses, but agrees once he offers her his chenille blanket that she likes.