A frog and a scorpion met at the bank of a stream. The scorpion, unable to swim, begged the frog to take him across on his back. "How do I know you won't sting me?" asked the frog. "But why would I?" said the scorpion. "We'd both drown!" The frog agreed, but as they were crossing the stream, he suddenly felt the pain of the scorpions sting. "Why did you do that?" asked the frog. "Now you'll die too!" Resigned to his fate, the scorpion replied, "I couldn't help it...it's in my nature."