Quote from Ross in The Where Rachel Rachel Goes Back to Work
Chandler: Oh, God, I have to tell you something. You're not pregnant. Monica: What are you talking about Chandler: Well, that thing that I have to do to make a baby? I faked it. Monica: What? You faked it? Ross: You know what? I don't need a tie. I mean, it's better open collar, you know? It's more casual.