At a shop where I once worked, the job of polishing was given to a guy who had some good skills, but unfortunately none was in polishing. To say he was ham handed would be to insult ham.
Someone once told him, "Lean a little harder on the wheel, Joe, that gun still has some markings on it!" Having no understanding of sarcasm, he did just that.
Believe it or not, most of the customers liked the shiny finish and didn't seem to care that "all that dumb scratchin" was gone.