Oh dear lord. I would probably throw the controller at that point. :) Haven't played that particular game, but I'm imagining a scenario where I beat the Chocobo Catcher race in Final Fantasy X with a time of 0.0 and then find out I'm signed in as my fiancee's PS3 account instead. Ugh.
@PhilC I might well have just renamed the PS3 account and claimed it as my own. Even factoring in wrath of Ash-like proportions, it would still have been less bother than doing that bloody race again. Seagulls still provoke incoherent rage in me.