THEM: i get ball and books you get all the hats  YOU: give me books and 2 hats  THEM: no deal  YOU: give me books and ball  THEM: you get ball i get the rest  YOU: i get books 3 hats  THEM: no way. i guess we don't have a deal  YOU: no deal  THEM: negotiation time  YOU: gimme books, you take rest.