NCIS: Los Angeles - Search and Destroy (1x04) quote
G: Is that a frog? SAM: It's a swan? G: From where Chernobyl? [G's looking at the *swan*.] G: Is that a wing? SAM: Yeah. It's a wing. G: Why are there three of them? SAM: There aren't three of them. That's the tail. G: The tail? ... Nothing. ... I just didn't know that swans had tails. SAM: Well, they do. A duck has a tail, right? G: Maybe. ... It could be a duck then. SAM: Keep it up. And you're gonna have to duck. G: I'm just saying.