THEM: i'll take all 3 hats.  YOU: if you are going to take the hats i would need everything else along with one of the hats  THEM: only if i can have the book  YOU: no deal. i need the book and one hat  THEM: you can have 1 hat if i can take the book.  YOU: no deal. i need the book and the hat. no deal otherwise  THEM: you can have all the hats if i can keep the book.  YOU: no deal.  THEM: you can have everything else if i can have the book.  YOU: no deal.  THEM: that was my final offer.