"Fisher-!" she began, but then she realized she didn't know his last name to finish it. Trying again, she added, "Just, Fisher! Don't you dare! I will find something that can't be replaced and flood it!" So what if her best threat was pretty weak.
When he amended his words, she grinned happily and contentedly munched away at her fries. "Thank you," she bubbled.
Eventually, she had consumed all the food she had ordered. Sitting back she moaned, "I don't think I can move!"