It's Just My Nature:
A scorpion wanted to cross the river, but he couldn't swim, so he asked a frog for a lift.
The frog replied, "How do I know you won't sting me?"
The scorpion said, "If I sting you, then you will drown, and I will drown with you."
The frog agreed to give the scorpion a lift.
Halfway across the river, the scorpion stung the frog.
When the frog asked why, the scorpion replied, "You have nice legs, besides you fool it’s just my nature."