It is in managment courses. If you give instruction to your worker that you want a sqaure, they will give you a square. They are not going to care if the square has straight or round edges.
When the milk is measured by protein, they will give you protein. They will not give a damn if it is the protein from your urine.
The moral of the story as told in managment course is: Be very specific and careful for what you ask from your workers. Because they are very creative and will always give you the stuff with the least amount of work! (Talk about creative industry and innovation!)