Grim's new girlfriend doesn't believe Grim when he claims he can tell when people are "faking it" so she fakes having a heart attack. This completely convinces everyone else, including Grim. Compulsive liars can convince others of their lies because they convince themselves so much that they act out their lies authentically. They've been known to convince themselves so absolutely, they pass phonograph lie detector tests.
The British read the Interolable Acts to the people of Massachusetts in response to the Boston Tea Party. These acts brought Massachusetts under the control of the British government and closed the port of Boston until the colonists paid for the destroyed tea. The colonists are outraged by these new laws.
A herald reading in public informs the Roman people of an upcoming visit of Prince Herod to the city. Because of the Prince's visit, Romans are advised to keep their mockery of the Jewish religion to a minimum.