A leaf fall into the pond, causing a clamor of protest.
"You are not a turtle," the turtles shouted at the leaf. "You must leave at once!"
For that the leaf replied calmly, "it's not my will to fall in here. It's the will of the wind which blow me to this pond. Like it's the will of the people who dropped you here. We are both victims of fate."
The turtles accepted his explanation, and welcomed their new brother.