500
What is the theme?
Two frogs lived in the same pool. The pool dried up under the summer's heat, so they left it and set out together for another home. As they went along they passed a deep well, supplied with water. One of the Frogs said to the other: "Let us go down and make our home in this well." The other replied with greater caution: "But suppose the water should dry up again, how can we get out again from something so deep?
Always plan things through.
Be prepared.
Think of the consequences.