Is John Cena going to be the first one to cash in his Money in the Bank and lose???

This Monday night on RAW when the WWE Champion, CM Punk was trying to defeat the Big Show even when he was vulnerable John Cena came out with his Money in the Bank brief case to make some kind of announcement, and of course that match ended in a no contest. John Cena was a quite confused that should he cash in his Money in the Bank contract on Punk or not and then Big Show started shouting on Cena that he should cash in his Money in the Bank contract right now or else he will never get another chance but then Cena announced that he will cash in his Money in the Bank on RAW's 1000 episode because he wants a fair  WWE championship match and then he knocked out the Big Show with the help of his brief case.

Well I think John Cena is going to be the first ever person to cash in his Money in the Bank contract and the lose because CM Punk has already defeated him in a one on one fair match last years Money in the Bank. John Cena is far to fair than he should be because Cena isn't aware of the importance and the way of using this contract. Cena thinks by doing this he will be considered like a true man who is fair, loyal, hustle and have respect but that atleast doesn't make me think that way. In my opinion John Cena is doing the foolish thing he has ever done because winning Money in the Bank means to be the future World Heavyweight or WWE Champion but may be this time when it would all start from a fair match things can go a lot different, even disqualifications can take place and that would prevent CM Punk from losing his title and cause Cena to lose a life time opportunity  for which many dream and try.