If thou more murmur’st, I will rend an oak
And peg thee in his knotty entrails till
Thou hast howled away twelve winters.
– William Shakespeare
The Tempest, Act 1, Scene 2. Prospero shows his cruel and tyrannical side in response to his servant Ariel expressing concern that he will not receive his promised freedom. Prospero threatens to imprison him in an oak tree – exactly what Sycorax did to him before Prospero freed him.