Mauritania
The Talking Turtle
"Once upon a time a turtle (who represents patience, wisdom) worked at a blacksmith and he tells everyone to keep their mouth shut or he'll burn their mother, but a neighbor just says 'wow! a talking turtle!' and runs to the king and says 'look! a talking turtle!' The king says if he's lying he will be killed so he tries and tries to get the turtle to talk but he won't. They hang the man and right before he dies the turtle says 'keep your mouth shut or i'll burn your mother!' MORAL: Keep your mouth shut about other peoples business."
Source: Here