We used to terrorize our babysitters when I was little, except for my grandfather because he used to read to us from his will.

The line is structured as a darkly comic childhood reminiscence: the speaker admits to being a mischievous child who “terrorized” babysitters, then undercuts the confession with an absurd exception—grandfather was immune because he read aloud from his will. The humor depends on incongruity (a legal document replacing a bedtime story) and on the macabre suggestion that inheritance and mortality can be wielded as a form of authority. It also hints at family dynamics in which the grandfather’s presence, wealth, or seriousness commands respect in a way ordinary caretakers cannot, turning the will into both entertainment and a subtle disciplinary tool.