"... Curried whale, goodness, you wouldn't feel like having that for tea, would you? I had an argument about it the other day with Protheroe -- you know how strictly she keeps Lent and all that sort of nonsense -- well, there she was eating whale meat thinking it was fish!"
"Well, isn't it?"
"No, of course it isn't. The whale is a mammal," said Dora in a loud truculent tone. "So you see it can hardly count as fish."
Hah. Take that, Mr. Melville ...