I have a VERY good long time friend that is EXTREMELY mechanically inclined. he can easily put most mechanical engineers to shame in a heartbeat. He cannot spell to save his life, but give him anything mechanical to fix and he will do it right before you can spell it!
But at least he TRIES to spell correctly, capitalize and use punctuation! He may not do it right all the time but he does put in effort any ways unlike some.
The fact that he doesn't do well with this doesn't make him a bad person by any means! He is the one person I can DEFINITELY count on when the chips are down! No matter what!!!