Don't pry with knives! Knives are not prying tools!
Now that that's out of the way, if it makes you feel any better, I had a dumb knife-related accident with my UMBP about a month after I got it.
Same scenario, UMBP went in a hard-shell case right out of the box to keep it pretty.
I was flipping a Spyderco Caly 3 open and closed to wear in the lock while using the computer. I didn't realize how close to the case I was getting, and somewhere around the 20th flick/close, there was a solid "Thock" as the tip of the knife stopped against the palm rest.
The spot is so tiny it's barely visible, but I couldn't un-see it for a few weeks afterward.
Happens with Cars, and with all nice, new, shiny things. It bugs you because
you know it's there, even if no one else sees it. Try to keep yourself occupied with other, more important things.
😉
----------
The paint on the MacBooks scratches really easily.
I don't mean to be "that guy," but the UMBP's are CNC machined, bead-blasted Aluminum. The last series to have painted parts was the late model Powerbook G4, and that was only parts of the top case.
Anyway, not putting you on the spot here, just the gadget geek in me. The UMBP line could have benefitted from some clear type III hard anodizing. They'd be a lot more scratch-resistant.
😀