On Phantom Hourglass I had got quite far on my first go on the game, I hadn't saved it and then my sister tripped over the chrger wire causing it to break and fly out of the wall with such force that is closed the DS screen with my fingers inside and my finger hit the power button and turned it...
Well, I remember when I defeated Malladus and completed Spirit Tracks after finally understanding how to kill him and I jumped up shouting "YES!" and punched my little sister in the face...