A Dutch cheesemeister was giving one of his pupils a lesson on how to make a unique kind of cheese that he had invented.
He stressed the fact that if it is not made right, it will become over-poweringly smelly. The secret was to be sure to ladle off every bit of the surface liquid before letting the cheese harden otherwise, there would be a smelly mess.
"In other words," he warned his pupil, "it's stink or skim."