There once was a poor shepherd named Yorgi. The only food he had to sustain himself on was the milk he got from the sheep, and it tasted so bad that he could barely drink it. As a result, Yorgi became thin and sickly.
One day, he met his friend Vladimir. Vladimir was a poor shepherd like himself, but he was hearty and healthy. Vladimir told him that he had to live on sheep's milk too, but he let him on a secret: a witch in a nearby village taught him a magic spell that makes sheep's milk taste as sweet as the richest cream. Yorgi begged Vladimir to teach him the spell, which his friend did willingly.
Sure enough, Yorgi's sheep produced the most delicious milk he ever tasted. Yorgi loved it so much, that he drank it by the liter. He milked his sheep so much that they cried out in pain. Yorgi realized that he couldn't make his sheep suffer like that, so he reversed the spell and resigned himself to drinking normal sheep's milk.
Now, there's no ewes crying over spelled milk.