Um, if my 4-year-old "signs" something, it will go like this: Me: "Scribble something on this line." Kid: scribbles Me: "Here's your stupid form." How would

Um, if my 4-year-old "signs" something, it will go like this: Me: "Scribble something on this line." Kid: scribbles Me: "Here's your stupid form." How would that get my kid "invested in complying" ?