nothing
he scrached his pepe
just rub toothpaste into the disc
that means your disc is scrached
only if disc is scrached up
they scrached there bum
you will start to get very dizzy and start seeing ghost
your disc is scrached
You call rock's shine (or dullness) LUSTER
Make sure to clean the wound and bandage it. Put Neosporin on it too.
It might help to get it professionally cleaned and polished
The rock layers will be easily visible.
Pumice.