Mary's father locks her in a room full of mice. Dr. Jekyll was the good side while his double is Mr. Hyde who creates all the violence. Mr. Hyde haunts Mary as an adult by biting her neck. When Hyde bites her neck, Mary reacts with the same plea she made to her father. The quote was "Please, sir, don't do that" (6). Another aspect is that Mary calls Dr. Jekyll “The Master”. Dr. Jekyll is always responsible for Mary even though he doesn't say so in the novel, but as a reader, I could infer that he was a Master and had control of Mary, while Mary's father could also be referred to as "The Master". My reasoning behind this is that Mary's father was very abusive and abused Mary and took care of her as a child. 5. Does Dr. Jekyll like to act like Mr. Hyde when his evil side comes out? Hyde is rewarded when Dr. Jekyll turns on him. Dr. Jekyll wants to be like Hyde when the consequences hit and then he wants to be Jekyll again. Hyde is Jekyll's alter ego. It is a second self, which is believed to be distinct from a person's normal or original personality and which can live a double life. Hyde likes having control over Jekyll because he is from a lower social background