i love that feature too, the way i see it.You know I wouldn't be surprised if it wasn't yawn. My Scrafty once took a critical hit from a fairy move. He should of fainted, but he was left with one hp. I think that if you have a close relationship with your pkmn then you may start to see strange results in battle. The context shown was something along the lines of "Scrafty endured the hit by remembering the first time it met Jarrad." It's a new feature and I love it because I can finally feel like the pkmn that I train have actual personality.
I sincerely hope no one ever hacks the 3ds, it is such a magnificent system and hacking it would turn it for the worse
