I am surprised nobody here has yet mentioned the real case of what happened to Evan Brown, the former president of the Dallas Ft Worth Unix Users Group who worked at a telephone switch company as a system administrator and had an idea for a generic code translator.
At first I was offended but then I realized he was just pulling my leg. He smiled and said, "I'm just yanking your chain." She added, "Don't mind him, he's always rattling someone's cage."
Zuerst war ich beleidigt, aber dann merkte ich, dass er gerade mein Bein zog. Er lächelte und sagte: "Ich zerrle gerade deine Kette." Sie fügte hinzu: "Kümmern Sie sich nicht um ihn, er ist immer rasseln jemandes Käfig."