Get a bigger knob?
Sorry, didn't mean to make "light" of your mistake here. Oh, crap, I did it again!
Gotta' agree, seriously, there's nothing to be done here. Call it mojo and that's about it.
If it helps, I've got a few of my own mistakes that I've had to live with over the years. I seriously cracked my two "heirloom" guitars because I didn't know squat about humidity. I had both guitars expertly repaired, but now I have to look at those cracks every time I open the guitar. It's a humbling experience, but one I learned from.