I've been in a similar situation a couple of times before, and I always make a point to apologize directly to the child for their parent's 'terrible behavior'. That usually gets the shitty parent really riled up, which is always good for a laugh.
Madness string 98197
This is not a new world, it is simply an extension of what began in the old one. It has patterned itself after every dictator who has ever planted the ripping imprint of a boot on the pages of history since the beginning of time. It has refinements, technological advances, and a more sophisticated approach to the destruction of human freedom. But like every one of the super-states that preceded it, it has one iron rule: logic is an enemy and truth is a menace.