No. I'm doing a course in it because the MOD says to do a course in it. Spelling is NOT part of the course. I'm a ships engineer, and have to deal with refrigerants daily, but have never bothered my arse to study the correct spelling of it.
Basically it's because I don't give a fuck.
dont worrie about it in a years time i will have finished my course and my new job will be looking after a nuclear reactor
and i cannot spell for SHIT LMFAO