I tend to get frustrated with the game, turn it off, and then forget to ever go back and finish playing it. It's happened to Fable 2, Banjo Kazooie N&B, and PoP on my 360 and I haven't touched any of them since. I still have a hard time figuring out why my 360 randomly gets disk read errors while I'm playing the game from my harddrive.
EDIT: I don't get frustrated with a game and then turn it off without saving, I get frustrated with my game AFTER my 360 randomly decides to get a disk read error and I lose hours of progress.
If there's one thing I've learned, it's that you need to save as often as possible with 360 games. :P










