THEM: hi, i would like the book and hats and you can have the ball  YOU: i need the book at least  THEM: i cant let go of the book. how about you get the ball and 1 hat?  YOU: hats have zero value for me  THEM: sorry then i guess we cant make a deal  YOU: sorry.  THEM: no dea ;  YOU: yeah, zorry  THEM: no worries  YOU: thanks.