Answer:
In ancient mythology and modern media, there is a humorous character archetype, the comic relief, that can also bring great change. This archetype is: The Shape-Shifter.
Trading an item for another item
Answer:
There were numerous restrictions to enforce social control: slaves could not be away from their owner's premises without permission; they could not assemble unless a white person was present; they could not own firearms; they could not be taught to read or write, nor could they transmit or possess “inflammatory”