There are two polite people having dinner together. On the table there is a dish with one big piece of fish and one small piece of fish. They politely say to each other: "You may choose first." "No, you may choose first." This goes on for a while. Then the first person says: "OK, I'll take first." And he takes the BIG piece of fish.
The second person is upset: "Why did you take the big piece? That's not polite!" The first person says: "Which piece would *you* have taken?" The second person replies: "Why, I would have taken the SMALL piece, of course." The first person says: "Well, that's what you have now!"