What are two examples of situational irony in crucible act 1?

Two examples of situational irony in Act 1 of "The Crucible" are when Reverend Parris, who should be a figure of moral authority, is shown to be more concerned about his reputation than the well-being of his daughter, and when Abigail, who accuses others of witchcraft, is revealed to have been involved in supernatural activities herself.