What is an example of situational irony in The Crucible?

One example of situational irony in "The Crucible" is when Abigail Williams accuses innocent townspeople of witchcraft to hide the fact that she herself is engaging in forbidden behaviors. Instead of being punished for her actions, she manages to turn the situation in her favor and manipulate others to do her bidding. This creates a situation where the accuser is actually guilty of wrongdoing, while the accused are falsely blamed and punished.