My personal favorite was during Individual Responsibility when Bill Church Jr. wiped his harddrives and said, "There, now there won't be anything that points to Intergang when police get here." Except for the fact that it says INTERGANG in big capital letters on the wall behind him somewhere.
At least I think that's how I remember it :p Also I happen to know that deleting files like that does *nothing* that can't be undone =p