One time I was playing Assassin's Creed II, I was on the mission at the beginning of the game where you have to beat up that guy who cheated on your sister. It was fairly straightforward, with me beating the ever loving crap out of him, until my controller shut off (I have wireless)and it didn't turn back on. The battery died. And ACII doesn't pause the game when the controller shuts off. So Ezio just stood there as Mr. Jackass McCheaterpants proceeded to light up our poor Italian friend. -_- It wasn't a monumental screw-up, but I haven't forgotten it. So, fellow Escapists, what's your favorite gaming story of a controller crapping out on you?