THEM: i'd like the book and 1 ball and you can have the rest.  YOU: how about two balls?  THEM: that won't work. how about i get the book and you get the rest?  YOU: how about you get two balls and one hat?  THEM: i need the book.  YOU: i love to read. i can't give you the book until i am done reading.  THEM: well then i guess we will not have a deal.  YOU: that is fine. i am willing to give you two hats and two balls, final attempt?  THEM: no, sorry.  YOU: okay then we don't have a deal.