Where do you put the line? What do you do with the ambiguous categories?
Clearly a trucker does not "deliver goods" and a Taxi Driver is not in the business of ferrying passengers - the vehicle does all of that, right?
Writers these days rarely bother with the actual act of writing now that we have typing.
I've rarely heard a musician, but I've heard lots of CDs and they're really quite good - much cheaper than musicians, too.
Is my camera an artist, or is it just plagiarizing the landscape and architecture?