It fails when the other party is aware of the strategy and broadens the context of the game to flip something else that you care about. Which is why the correc

It fails when the other party is aware of the strategy and broadens the context of the game to flip something else that you care about. Which is why the correct response to all requests for a contract re-negotiation is "Great - let's meet, because I also have some terms I would like to see changed."