The Parable of the Snake
One day, a long time ago, a little girl name Sarah found a snake in the woods. The snake was badly wounded, and obviously dying.
Sarah felt pity on the snake and took him home with her, and nursed him back to health. It seemed like with each passing day, the snake gained strength. Sarah was so proud of him, and proud of herself for helping him.
Then one Sarah opened the snake's box to feed him... and the Snake bit her!
"Ouch!" said Sarah. "Why did you bite me? I've cared for you! I've helped you!"
The snake hissed.
"Indeed. You did help me. But I am still a snake."