Then again, I've been (as the Internet likes to say) Doing It Wrong from about the very start. Why start following the rules now?
I just got whacked over the head with a notion that will start with changing one or two lines of dialogue, reviewing all events that follow those lines of dialogue with an eye to that change and rewriting the ultimate outcome in a way that is subtly different but much more satisfying.
The line that will mark this shift will probably go something like this:
"That's okay, thanks."