The Fox and The Paintpot (Fable)
A fox crawled in through the window of a house and went for a wander around the house and while he was there he accidentally disturbed an open paintpot that fell over onto him covering him in green paint and so upset was he that he rushed out of the house again.
And when, trying to bathe himself in the river the paint would not come off he was very angry.
"What an unlucky fox I am!", he said, "My beautiful red coat is ruined forever".
But then, as the fox was walking back to his sett in the forest, he heard the sound of baying hounds and tried to hide himself and when the hounds caught up with him because the green paint had made his coat the same colour as the forest neither the hounds nor the hunters could see him.
Then, when the hunters went on their way taking their pack of hounds with them, the fox said, "What a lucky fox I am! Thank goodness that I was covered in that green paint".
Moral: Ill fortune is sometimes good fortune in disguise