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."
And 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: "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!"