During a G20 social event this past weekend, Brazilian First Lady Janja da Silva cursed against billionaire Elon Musk in an outburst that made waves ahead of the world’s leader’s Summit starting Monday in Rio de Janeiro. President Luiz Inácio Lula da Silva’s wife was speaking through a microphone to an audience when a ship horn nearby interrupted her: “It’s Elon Musk,” she said. “I’m not afraid of you, f**k you, Elon Musk,” she added.