The cat partridge and the hare:A crook doesn't change his character even if he changes his outward appearance.

Once upon a time there lived a partridge under a tree. The partridge one day decided to go to the fields and indulge itself in the food there. But it did not return for many days as it found the fields a good source of food.
In the meantime a hare came along one day and occupied the same dwelling which the patridge used to live in. The partridge however returned from the fields having grown plump from the food. It wanted to claim the dwelling for itself. A fight ensued and the hare was saying that the dwelling belonged to whoever occupied it.
 

Then they both decided to contact a supposedly learned cat, on the shores of the Ganges who was supposed to be wise and old. So one day they both approached the cat with their problem. The cat, which was actually a hypocrite who earned his livelihood by posing as a priest, decided to take advantage of the occasion. On hearing the partridge and the hare from a distance, it said, "Sorry! I can't hear you from that far a distance because of old age. Dont worry I mean no harm to you. Come closer and both of you relate your stories."
They were fooled into coming near and as soon as he could lay his hands on both of them he killed them both and had a meal.
MORAL: A crook doesn't change his character even if he changes his outward appearance.