You start concentrating on the skill.
You are prepared to do the skill.
You place the ebony on the work bench before you and reach for your saw and
begin cutting the ebony to your specifications.  Suddenly your hand slips and
you foolishly fall forward on the workbench and hurt yourself in the process.
Fortunately, your ebony has not been spoiled by your clumsiness.
You place the ebony before you on the workbench, and reach for your saw. You
busily work at the wood, but the carpentry is beyond your meager skill.

part of me is going..
sarcasm: oh yeah, cause the ebony is so goddamn important...
the other part of me is going
relief: thank god i didn't ruin my mats!