There was once a greedy jackal who was prowling around, looking for food.
He saw two angry rams fighting, running at each other and butting heads. The jackal noticed that each time the rams butted heads, blood dripped down on the ground.
"I bet that blood would be tasty!" thought the jackal.
So the jackal ran up and licked the blood off the ground.
"That is delicious," he thought. "I want to get every drop."
Foolish jackal! While he was licking the blood, the rams butted their heads together again, and the jackal was crushed to death between their horns.
Inspired by: The Panchatantra, translated by Arthur Ryder. It is in Book 1, Story 6.
Notes: In the Panchatantra this is an actual event that one of the characters in another story witnesses.
Here is an illustration from a 15th-century Panchatantra: