The tough negotiation goes on.
It appears that even professional people don't use terms appear in text book about negotiations. Terms such as ZOPA, BATNA, RP etc are not used by professionals.
To me this is like the World Cup matches. It's not about how good you are or what strengths you have over the other side. The referee plays an important role in the game and like all players in the field he's human too. If you think the outcome is unfair, too bad, referee's decision is final.