The result of a possible win-win scenario in which the clear beneficiary of the win-win scenario fails to keep their end of the bargain, resulting later into a win-lose scenario.
Commonly found with people who fail to transition a informal verbal agreement to a formal written agreement, backstabbers, double-cross someone, or dealing with someone with a "do nothin', get everythin'" mentality.
1.) When Paul failed to wash the dishes all week after his father let him go to a party the previous week, his father realized that he was a victim of win-lose bargaining.
2.) Mike had been involved with some win-lose bargaining when he and Ken agreed to split the bill only for Ken to leave without notice, leaving Mike to pay for the large meal.
3.) When someone agrees to give another head after they themselves have been given head, but then leaves, the giver of head is on the losing side of the win-lose bargaining.