You would turn off the game, but you're worried if autosave is on or not. The last thing you want to do is shut down the game without saving it.

You do a quick check and find out that you can save it at this moment but you're unsure you WANT to save it in the case autosave is on and it saved before this mess.

You think of going back to the other saved game but you'll have to think about it.