Things not to say

My wife and I were watching Who Wants To Be A Millionaire while we were in bed.
I turned to her and said, "Do you want to have sex?"

"No," she answered.
I said, "Is that your final answer?"

She didn't even look at me this time, simply saying, "Yes."

So I said, "Then I'd like to phone a friend."

And that's when the fight started ...